102001850 has 24 divisors (see below), whose sum is σ = 194354748. Its totient is φ = 39804800.

The previous prime is 102001847. The next prime is 102001871. The reversal of 102001850 is 58100201.

102001850 = 1129² + 1130² + ... + 1203².

It can be written as a sum of positive squares in 6 ways, for example, as 52441 + 101949409 = 229^2 + 10097^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22829 + ... + 26928.

Almost surely, 2^102001850 is an apocalyptic number.

102001850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102001850 is a deficient number, since it is larger than the sum of its proper divisors (92352898).

102001850 is a wasteful number, since it uses less digits than its factorization.

102001850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49810 (or 49805 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 17.

The square root of 102001850 is about 10099.5965265945. The cubic root of 102001850 is about 467.2356975924.

The spelling of 102001850 in words is "one hundred two million, one thousand, eight hundred fifty".