One thousand nine hundred eighty
1980 is an even number.
1980 is a Harshad number, which means it is divisible by the sum of its digits (1 + 9 + 8 + 0 = 18, and 1980 is divisible by 18).
In binary, 1980 is represented as 11110111100.
In hex, 1980 is represented as 7bc.
Prime factorization of 1980: 22 * 32 * 5 * 11.
Factors of 1980 are: 1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 396, 495, 660, 990, 1980.