20110930 has 32 divisors (see below), whose sum is σ = 43551360. Its totient is φ = 6531840.

The previous prime is 20110927. The next prime is 20110957. The reversal of 20110930 is 3901102.

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 15 ways as a sum of consecutive naturals, for example, 6231 + ... + 8890.

It is an arithmetic number, because the mean of its divisors is an integer number (1360980).

Almost surely, 2^20110930 is an apocalyptic number.

20110930 is an abundant number, since it is smaller than the sum of its proper divisors (23440430).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20110930 is a wasteful number, since it uses less digits than its factorization.

20110930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15154.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 20110930 is about 4484.5211561548. The cubic root of 20110930 is about 271.9426872469.

The spelling of 20110930 in words is "twenty million, one hundred ten thousand, nine hundred thirty".