Count by meaningful numbers

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12obin
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Re: Count by meaningful numbers

Postby 12obin » Thu Oct 30, 2014 3:16 am UTC

I was 17 the first time I had sex. This is also the age that Chef on South Park says is when everyone should have sex for the first time. That didn't influence me, though, and that episode might even have come out when I was already older than that.
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Re: Count by meaningful numbers

Postby bachaddict » Thu Oct 30, 2014 10:08 am UTC

18.
2x9, 3x6. I just like this number for some reason.
When I turned 18 I could've bought drinks or smokes. I didn't and still haven't.
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Re: Count by meaningful numbers

Postby ramblinjd » Fri Oct 31, 2014 4:56 pm UTC

18.8333
The number of feet (length) in the average cross-sectional width of a Boeing 787-8 Dreamliner, a plane I spend a lot of time around at work.

To be more exact, its nominal cabin width is 226".

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Re: Count by meaningful numbers

Postby Vytron » Sat Nov 01, 2014 9:47 am UTC

<I have not been participating in this thread recently because I still haven't recovered from when 12obin mentioned numbers 11 and 17. I've been thinking about one, and the other, and both together, even though I know they happened years apart. My imagination is so strikingly vivid that basically it's as if 12obin uploaded videos of the events and I watched them>

Anyways.

19

The Magic Hexagon Number


First, let's talk about centered hexagonals, they're very simple, you have a hexagon surrounded by hexagons to get your first figure. You surround your first figure with hexagons to get another, and so on.

A Magic Hexagon is a centered hexagonal that has a number in each hexagon, counting them, in any order, so that if you sum the numbers in all three directions on a line you get the same magic constant.

Turns out this is the only arrangement that fulfills these conditions:

mah.png
mah.png (8.36 KiB) Viewed 5823 times


3+17+18=38
9+7+1+11=38
...
18+11+9=38
17+1+6+14=38
...
9+14+15=38
Etc.

That is, there's no other arrangement that gives those outcomes (other than trivial rotations/flippings of the same.)

And there's no other centered hexagonal that has this property.

So this is THE Magic Hexagon, it is unique, and it has 19 ones.

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12obin
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Re: Count by meaningful numbers

Postby 12obin » Sat Nov 01, 2014 7:14 pm UTC

Vytron wrote:Turns out this is the only arrangement that fulfills these conditions


Is it the only arrangement that does it without repeating numbers, or is that just a feature of literally the only arrangement?
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Vytron
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Re: Count by meaningful numbers

Postby Vytron » Sat Nov 01, 2014 10:21 pm UTC

12obin wrote:Is it the only arrangement that does it without repeating numbers


Without repeating numbers (if you count the hexagons you'd not count a hexagon twice or give the same number to 2 different hexagons.)

Actually, if you start counting from a higher number instead of 1, or even from a negative number, there's many other so called "Abnormal Magic Hexagons."

If you allow repetition or skipping of numbers then there's a trivial amount of infinite ones and centered hexagonals that have this property (but they're no longer "magical".)

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Re: Count by meaningful numbers

Postby phillip1882 » Sun Nov 02, 2014 7:53 pm UTC

p1p1ppp1 (20 in recursive factorization) cause its cool.
good luck have fun

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Re: Count by meaningful numbers

Postby Vytron » Sun Nov 02, 2014 8:13 pm UTC

Why is it cool?

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12obin
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Re: Count by meaningful numbers

Postby 12obin » Thu Nov 06, 2014 4:14 am UTC

21 is the legal drinking age in America. Or at least parts of America. I'm not sure. In Ontario where I live in Canada, it's 19, and in neighboring Quebec it's 18 so 18-year-olds from here just go to Quebec to drink, but because American Tv and movies are so pervasive, the age of 21 still sort of has this significance.
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Re: Count by meaningful numbers

Postby Vytron » Thu Nov 06, 2014 6:02 am UTC

But that's an arbitrary significance imposed by society coming from standards and stereotypes of behavior related to age (i.e. 21 is the legal age for many things because someone thought people 21 years old have enough maturity to make better decisions and take more responsibilities, even though many people at that age haven't, while others do it much earlier, and there's no actual difference from the day before turning 21 and the day afterwards yet law expects people to be different all of a sudden), unlike mathematical significance like:

22

The first semiprime that has this property:

It has a 7-member aliquot sequence 22, 14, 10, 8, 7, 1, 0 of which the next two members are themselves semiprimes.

Semiprimes are numbers that are the product of two primes numbers.

For aliquot sequences:

Get number n and list all its divisors. Sum their divisors and subtract n, this is your new number. Repeat. You will get into a cycle or reach 0.

22's divisors: 1, 2, 11, 22. 1 + 2 + 11 + 22 - 22 = 14

14's divisors: 1, 2, 7, 14. 1 + 2 + 7 + 14 - 14 = 10

10's divisors: 1, 2, 5, 10. 1 + 2 + 5 + 10 - 10 = 8

8's divisors: 1, 2, 4, 8. 1 + 2 + 4 + 8 - 8 = 7

7's divisors: 1, 7. 1 + 7 - 7 = 1

1's divisors: 1. 1 - 1 = 0

14 and 10 are also semiprimes, and 22 is special because you can't find a semiprime lower than it that has 2 semiprimes at the start of its aliquot sequence.

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12obin
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Re: Count by meaningful numbers

Postby 12obin » Thu Nov 06, 2014 7:06 am UTC

My point was that it has cultural significance, more than the legal.
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Re: Count by meaningful numbers

Postby 12obin » Thu Nov 06, 2014 7:19 am UTC

Anyway.

23 is the age at which I was homeless for the entire year. That is to say, I was 22 when I became homeless and 24 when I got housing.
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Re: Count by meaningful numbers

Postby Vytron » Thu Nov 06, 2014 7:48 am UTC

12obin wrote:My point was that it has cultural significance, more than the legal.


My point it is arbitrary significance, cultural or not (not that there's anything wrong with arbitrary significance.)

And, huh... I'll continue putting all 12obin's stories together, so e's... yeah...

24

Hours in a day.

Probably the most boring number I've posted.

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12obin
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Re: Count by meaningful numbers

Postby 12obin » Thu Nov 06, 2014 9:43 am UTC

Vytron wrote: so e's... yeah...


Am I?
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Re: Count by meaningful numbers

Postby AarexTiaokhiao » Thu Nov 06, 2014 12:40 pm UTC

25 is the smallest aspiring number — a composite non-sociable number whose aliquot sequence does not terminate.
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Re: Count by meaningful numbers

Postby Vytron » Thu Nov 06, 2014 2:35 pm UTC

12obin wrote:Am I?


In my imagination, yes. Though I don't mind having you on my head, even though it's a little distracting, I hope you don't mind being on my head. I do feel sorry about you being homeless and am glad you got housing.

@AarexTiaokhiao: What is a non-sociable number? I think the meaningfulness of these numbers can't be realized unless you explain what you mean.

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Re: Count by meaningful numbers

Postby 12obin » Thu Nov 13, 2014 1:27 am UTC

26 is how old my mother was when I was born. Put another way, it is the difference in years between my mother's age and my own.
I think 26 is a pretty good age to have kids at.
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firesoul31
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Re: Count by meaningful numbers

Postby firesoul31 » Thu Nov 13, 2014 1:56 am UTC

26.2 is the number of miles in the modern marathon, in which around two extra miles were added from the original. Also, were I twice as old as I was e^-1 years before I joined this forum, that would be my approximate age.

edit: "was I"
Pronouns: she/her/hers or they/them please.

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Re: Count by meaningful numbers

Postby Vytron » Thu Nov 13, 2014 2:10 am UTC

27. Number of letters in the Mexican Alphabet.

Yep, we got the extra guy called ñ, which makes a sound not really found in other languages, and all our keyboards come with an extra key (not really. What happens is we get a different layout, and for the Ñ and ñ characters we end giving up the backslash and @ characters, which sucks. I still have to copy the backslash character from the internet when I want to use it - despite downloading a program to change my keyboard's layout, because I'm too lazy to fire it up - and basically, if you like in México you have to learn that ALT+64 produces an @, or learn what is the ALT+CTRL key that produces it, which changes from keyboard to keyboard.

...

Well, perhaps Ñ/ñ isn't all to blame... we have a key dealing with the ¡ and ¿ symbols, and an extra one for one that adds a stress over the vowels. ÁÉÍÓÚáéíóú from the keyboard! BAM! At the price of missing the ~ as well, and who knows what else.

...

But maybe that's not all to blame either, BECAUSE WE WASTE A WHOLE KEY FOR THE + AND * SYMBOLS THAT ARE DUPLICATED ON THE NUMBERPAD! UGH!

My mother language sucks...)

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12obin
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Re: Count by meaningful numbers

Postby 12obin » Thu Nov 13, 2014 2:24 am UTC

"Were I" is formally correct. It's the subjunctive, the conjugation for hypothetical things. But colloquially both are fine.
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Re: Count by meaningful numbers

Postby Vytron » Thu Nov 13, 2014 2:30 am UTC

Yeah, I think "was I" is used... like that, while "were I" is used for very unlikely things, so firesoul31 would be saying that being twice as old as he was e^-1 years before he joined this forum would have been very unlikely.

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Re: Count by meaningful numbers

Postby firesoul31 » Thu Nov 13, 2014 2:40 am UTC

Moods: my nemesis.

27.9881: The latitude north of the highest place on Earth.
Pronouns: she/her/hers or they/them please.

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Re: Count by meaningful numbers

Postby AarexTiaokhiao » Sat Nov 15, 2014 2:42 pm UTC

28: Number of Feburary days on common year.
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12obin
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Re: Count by meaningful numbers

Postby 12obin » Sat Nov 15, 2014 7:45 pm UTC

It turns out that this thread is a duplicate of another, more successful thread. Please stop posting here so we can concentrate our efforts on Connotation Counting.

viewtopic.php?f=14&t=110366
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bachaddict
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Re: Count by meaningful numbers

Postby bachaddict » Mon Nov 17, 2014 8:30 am UTC

It's not really a duplicate. That thread is finding something that suggests a number, for every integer. This is finding a number bigger than the last that is special to you.
slinches wrote:Also, the OTC isn't a disease. In fact, it's the cure. As we all know, Time heals all wounds.

Thanks for the molpish wig ggh!
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Re: Count by meaningful numbers

Postby ramblinjd » Mon Nov 24, 2014 5:54 pm UTC

I, for one, quite like this thread, and would like to keep it going.

28.086

The average molecular mass of what's probably in any fake breasts you see.

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Vytron
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Re: Count by meaningful numbers

Postby Vytron » Mon Nov 24, 2014 6:20 pm UTC

I, for two, too.

28.28~

This is the square root of 8 multiplied by 10.

Equal to:

The square root of 2 multiplied by 20.

Length of the diagonal of a square with side length 20.

Length of the diagonal of a 10 multiplied by the square root of 7 rectangle.

Length of the diagonal of a square root of 2 times square root of 6 rectangle, multiplied by 10.

Length of the diagonal of a square root of 3 times square root of 5 rectangle, multiplied by 10.

PsiSquared
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Re: Count by meaningful numbers

Postby PsiSquared » Sat Sep 05, 2015 6:08 pm UTC

29.53058885 - the number of days in a synodic month (the time between two new moons)

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Re: Count by meaningful numbers

Postby NathanBros » Sat Sep 05, 2015 9:38 pm UTC

29 years are required to Saturn orbit the Sun.
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Re: Count by meaningful numbers

Postby PsiSquared » Sun Sep 06, 2015 3:56 pm UTC

Oh, I didn't see that we weren't supposed to skip numbers. Sorry.

30 - The smallest sphenic number (a number which is a product of three distinct primes)

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Re: Count by meaningful numbers

Postby threetwoone » Mon May 07, 2018 1:29 am UTC

31 - yet another prime.
---Three Two One!---


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