Thursday, August 19, 2010

676

676 = 22 x 132.

676 = 262, a perfect square.

676 is the smallest palindromic square whose square root is not palindromic.

676 has a representation as a sum of two squares: 676 = 102 + 242.

676 is a divisor of 994 - 1.

676 is 1010100100 in base 2 (binary).

676 Melitta is an asteroid discovered in 1909.

1 comment:

  1. Other features of the number 676:
    676 is a centered 15-gonal according http://www.virtuesciencie.com./676
    676 is 565 and 484 in base12 base11 two palindromes.
    676 is a square waving, see A016073and http://mathworld.Wolfram.com/UndulantingNumber
    676 is a powerful number, because 676/2^2 and 676/13^2, see A001694 and http://mathworld.Wolfram.com/PowerFullNumber
    676 orthic triangle is part of the approach hyperbola Kiepert, see http://mathworld.Wolfram.com/OrthicAxis
    676 can be represented as
    676=6^2+8^2+14^2
    676=3^6-53
    676 divides 99^4-1 -> 142100
    It can also be represented as Pythagorean triples
    676^2=260^2+624^2=476^2+480^2
    676^2+114243^2=114245^2
    Rafael Parra Machio

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