465

465 = 3 x 5 x 31.

465 is the 30th triangular number (the sum of all integers from 1 to 30).

465 is a Kaprekar constant in base 2.

465 x 831 = 386415 (the product has the same digits as its factors).

465 is 393 in base 11.

465 is a member of the Padovan sequence.

Source: Zoo of Numbers