Friday, September 30, 2011

976

976 = 24 x 61.


976 has a square formed by inserting a block of digits inside the original number: 9762 = 952,576.

976 has a representation as a sum of two squares: 976 = 202 + 242.

976 is a divisor of 114 - 1.

976-EVIL is a 1989 horror film directed by Robert Englund.

Thursday, September 29, 2011

680

680 = 23 x 5 x 17.

680 is the 15th tetrahedral number. It is the smallest tetrahedral number that is also the sum of two tetrahedral numbers: 680 = 560 + 120.

680 has two representations as a sum of two squares: 680 = 22 + 262 = 142 + 222.

680 is 404 in base 13.

680 can be written as the sum of distinct odd powers of two: 680 = 23 + 25 + 27 + 29.

WCBM AM 680 is a talk radio station in Baltimore.

Wednesday, September 28, 2011

458

458 = 2 x 229.

458 has a representation as a sum of two squares: 458 = 132 + 172.

458 is a number that does not have any digits in common with its cube: 4583 = 96,071,912.

4582 contains exactly six different digits: 4582 = 209,764.

The Ferrari 458 Italia is a sports car that was introduced in 2009.

Tuesday, September 27, 2011

156

156 = 22 x 3 x 13. It is a pronic number because it is the product of two consecutive numbers: 156 = 12 x 13.

156 is 1111 in base 5.


156 is the number of graphs with six vertices.


A clock will strike 156 times in the course of a day.

Monday, September 26, 2011

452

452 = 22 x 113.


452 has a representation as a sum of two squares: 452 = 142 + 162.


452 is a divisor of 154 - 1.


452 is 381 in base 11 and 318 in base 12. It is 202 in base 15.


452 is the sum of seven nonzero 4th powers.


The Petronas Towers in Kuala Lumpur, Malaysia, are 452 meters tall (including antenna spires).



Friday, September 23, 2011

857

857 is a prime number.


857 has a representation as a sum of two squares: 857 = 42 + 292.


857 and 859 form a twin prime pair.


857 is the hypotenuse of a primitive Pythagorean triple: 8572 = 2322 + 8252.


142,857 x 5 = 714,285 = 8572 - 1422, where 857,142 = 142,857 x 6.


857 is 1011202 in base 3. It is 272 in base 19.


857 is the sum of three consecutive primes: 857 = 281 + 283 + 293.


Glasenappia 857 is an asteroid discovered in 1916.



Source: Wikipedia

Thursday, September 22, 2011

339

339 = 3 x 113.


339 is the number of ways to divide 5 black and 5 white beads into piles.


3393 = 38,958,219 = (389 - 58 - 2 + 1 + 9)3.


339 is 2324 in base 5 and 1323 in base 6. It is 523 in base 8.


339 is the sum of the squares of three consecutive primes: 339 = 72 + 112 + 132.


The Gibson ES-339 is a custom hand-crafted electric guitar.



Related Posts Plugin for WordPress, Blogger...