Friday, July 16, 2010

272

272 = 24 x 17.

272 has a representation as a sum of two squares: 272 = 42 + 162.

272 is the number of hyperspheres in 9 dimensions that can touch an equivalent hypersphere without any intersections (Kissing Number).

272 is a pronic number, the product of two consecutive numbers: 272 = 16 x 17.

All the digits of 272 are prime, and the sum of the digits of this palindromic composite is 11, a palindromic prime. The product of the digits is 28, a perfect number.

272 is the sum of four consecutive primes: 272 = 61 + 67 + 71 + 73.

A Calorie Counter offers a list of the 272 fast food items highest in calories.

at

1 comment:

  1. AnonymousJuly 16, 2010 at 1:16 PM

    Other properties of the number 272:
    272 is palindrome according A002113
    272=33^2-1
    272=17^2-17^1
    272=2^4+4^4
    Pythagorean triple is represented as
    272^2=128^2+240^2
    272^2+546^2=610^2
    272^2+2304^2=2320^2
    272^2+4620^2=4628^2
    Rafael Parra de Barcelona

    ReplyDelete