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by CHOOKY is GOLD on November 9th, 2009
http://en.wikipedia.org/wiki/496_(number)
Its a perfect number
496 is most notable for being a perfect number, and one of the earliest numbers to be recognized as such. As a perfect number, it is tied to the Mersenne prime 31, 25 - 1, with 24 ( 25 - 1 ) yielding 496. Also related to its being a perfect number, 496 is a harmonic divisor number, since the number of proper divisors of 496 divided by the sum of the reciprocals of its divisors, 1, 2, 4, 8, 16, 31, 62, 124, 248 and 496, (the harmonic mean), yields an integer, 5 in this case.
A triangular number and a hexagonal number, 496 is also a centered nonagonal number and a centered 11-gonal number. Being the 31st triangular number, 496 is the smallest counterexample to the hypothesis that one more than an even indexed triangular number is a prime number. It also happens to be the largest happy number under 500.
There is no solution to the equation φ(x) = 496, making 496 a nontotient.
E8 has real dimension 496.
by philosopher-saint on November 9th, 2009
It's the *only* numerical quantity known in the universe that if divided by two equals 248.
;-)
by temporary name on November 9th, 2009
It's special because it's 1 more than 495.
by Pumpkin Etoile on November 9th, 2009
Its like 69 but backwards and with 4 people?
by Alexander on November 9th, 2009
It is perfectly equal to the sum of its proper divisors.
by Factotum on November 9th, 2009
It was always there for me when I needed it.
by Hostie on November 9th, 2009
496, 4+9+6 = 19 = my age!
by Sharona Life is a Tale Told by an Idiot on November 9th, 2009
It comes directly after 495. Unbelievable.
by Tom 47 is back in his bear COAT on November 9th, 2009
It can only be divided by two four times, then you have an odd number, thirty-one, not divisible by any number.
by jeanie16 on November 9th, 2009
well, just because it is uniquely 496 ! :)
by dumdum on November 9th, 2009
Not so special for me.
Did you know... (math)
111,111,111 x 111,111,111 = 12,345,678,987,654,321
by SELENIUM_TEST_47547 on January 8th, 2011
| 1 person likes this
How many digits of Pi are enough? What about e?
by VladimirVladimirovichVladvonVladderson on October 13th, 2011
| 1 person likes this
How long estimated would it take to try each combination of number from 00000-99999?
by Nizzik on July 11th, 2010
| 1 person likes this
What have you lost track of?
by Barcaluv on June 9th, 2010
| 5 people like this
Can you write a formula that will always generate primes?
by Steven_S3187 on April 6th, 2011
| 1 person likes this
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Comments
English translation, please? lol
by FreshApples on November 9th, 2009
wow, that was amazing,............ its interesting what we dont know.
by jeanie16 on November 9th, 2009