102689930 has 16 divisors (see below), whose sum is σ = 211248000. Its totient is φ = 35207952.

The previous prime is 102689929. The next prime is 102689941. The reversal of 102689930 is 39986201.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 733430 + ... + 733569.

It is an arithmetic number, because the mean of its divisors is an integer number (13203000).

Almost surely, 2^102689930 is an apocalyptic number.

102689930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102689930 is an abundant number, since it is smaller than the sum of its proper divisors (108558070).

102689930 is a wasteful number, since it uses less digits than its factorization.

102689930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1467013.

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 102689930 is about 10133.6039985782. The cubic root of 102689930 is about 468.2839639565.

The spelling of 102689930 in words is "one hundred two million, six hundred eighty-nine thousand, nine hundred thirty".