766

766 = 2 x 383.

766 is a centered pentagonal number (A005891).

766 is the number of series-reduced planted trees with 9 leaves (A000669).

766 is 23332 in base 4.

766 is the sum of 12 consecutive primes: 766 = 41 + 43 + 47 + 53+ 59 + 61 + 67 + 71 + 73 + 79 + 83 + 89.

766 is a number n such that the square of n is the sum of two successive primes (A074924).

766 is the number of unimodular 2 x 2 matrices having all terms in {1, . . ., 17} (A210000).

Source: What's Special About This Number?