Friday, September 27, 2013

836

836 = 2 x 2 x 11 x 19.

836 is a weird number (abundant but not pseudoperfect) (A006037).

836 is a 17-gonal (or heptadecagonal) number: (A051869).

836 is a divisor of 453 - 1.

836 is the number of regions made by diagonals in a regular 38-gon that are heptagons (A067154).

836 (a non-palindrome) has a palindromic square (A002778): 8362 = 698896.

621,770 + 77,126 = 8362 = 698896 and 621,770 - 77,126 = 7382 = 544,644.


836 is the numerical equivalent of TEN on a touch-tone telephone.

Source: Number Gossip

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