Friday, October 5, 2012

793

793 = 13 x 61.

793 is one less than twice its reversal: 793 = 2(397) - 1.

793 is a dodecagonal number and a centered dodecagonal number (A003154).

793 has two representations as a sum of two squares: 793 = 32 + 282 = 82 + 272.

793 is the hypotenuse of two primitive Pythagorean triples: 7932 = 1682 + 7752 = 4322 + 6652.


Source: What's Special About This Number?

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