100 posts

Uncategorized — frozensummers on April 28, 2006 at 4:45 am

Well…. this is post number 100.

So instead of some long rant about how great its been, or how much fun/pain I’ve had over the many posts, I’ll just copy&paste the article about 100 from wikipedia

100 (number)

From Wikipedia, the free encyclopedia

100 (one hundred) (the Roman numeral is C for centum) is the natural number following 99 and preceding 101.

Cardinal 100
one hundred
Ordinal 100th
one hundredth
Factorization 2^2 \cdot 5^2
Divisors 2, 4, 5, 10,
20, 25, 50
Roman numeral C
Unicode representation of Roman numeral ,
prefixes hecto-/hect- (from Greek)

centi- (from Latin)

Binary 1100100
Hexadecimal 64

In mathematics

One hundred is the square of 10 (in scientific notation it is written as 102). The standard SI prefix for a hundred is “hecto-”.

It is the sum of the first nine prime numbers, as well as the sum of two prime numbers (47 + 53), and the sum of the cubes of the first four integers. Also, 26 + 62 = 100, thus 100 is a Leyland number.

But perhaps this number is most important as the basis of percentages (literally “per hundred”), with 100% being a full amount.

One hundred is also an 18-gonal number. It is divisible by the number of primes below it, 25 in this case. But it can not be expressed as the difference between any integer and the total of coprimes below it, making it a noncototient.

100 is a Harshad number in base 10, and also in base 4, and in that base it is a self-descriptive number.

In astronomy

The Messier object M100, a magnitude 10.5 spiral galaxy in the constellation Coma Berenices.

The New General Catalogue object NGC 100, a magnitude 13.3 spiral galaxy in the constellation Pisces.

In other fields

U.S. hundred-dollar bill

One hundred is also:

1 Comment »

  1. Oh, Dan. You and your shinadigans.

    Comment by The Smith — April 28, 2006 @ 7:34 pm

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