31660

31660 is a natural number that lies between 31659 and 31661. It is an even, composite integer that can be used as an example of a non-prime with multiple factors in mathematical discussions.

Prime factorization of 31660 is 2^2 × 5 × 1583, where 1583 is a prime number. This factorization yields 12 positive divisors: 1, 2, 4, 5, 10, 20, 1583, 3166, 6332, 7915, 15830, and 31660. The number is divisible by 4 and by 5, making it a multiple of 20 (31660/20 = 1583). It is not divisible by 3, and its digit sum is 16, so it is not a Harshad number in base 10; equivalently, 31660 mod 3 equals 1.

In common base representations, 31660 equals 0x7BAC in hexadecimal, and 0o75654 in octal. In binary, it is 0111101110101100, a 16-bit representation that fits comfortably within standard computer word sizes. As a 16-bit unsigned value, 31660 is well within the 0–65535 range used by many systems and programming environments.

Beyond pure mathematics, 31660 may serve as an identifier in various contexts, such as catalog numbers, serial codes, or postal identifiers, depending on the particular system. There is no widely recognized mathematical constant or widely known object uniquely associated with the number 31660.