19885
19885 is a positive integer in the decimal number system.
Prime factorization: 19885 = 5 × 41 × 97. Because its prime factors are distinct, 19885 is square-free and has eight positive divisors: 1, 5, 41, 97, 205, 485, 3977, and 19885. It is divisible by 5, with a cofactor of 3977.
Representations in other bases include binary 0100110110101101, octal 46655, and hexadecimal 4DAD. The decimal digits sum
Euler's totient function yields φ(19885) = 15360. The number of positive divisors is 8.