450 = 2 x 32 x 52.
450 has two representations as a sum of two squares: 450 = 32 + 212 = 152 + 152.
450 is 3300 in base 5, 1212 in base 7, 550 in base 9, 242 in base 14, and 200 in base 15.
450 and 4502 = 202,500 have the same digit sum: 4 + 5 + 0 = 2 + 0 + 2 + 5 + 0 + 0 = 9.
450 is a perfect score in Canadian five-pin bowling.
