30013917928 has 32 divisors (see below), whose sum is σ = 59600507400. Its totient is φ = 14120865792.

The previous prime is 30013917917. The next prime is 30013917991. The reversal of 30013917928 is 82971931003.

It can be written as a sum of positive squares in 4 ways, for example, as 15213248964 + 14800668964 = 123342^2 + 121658^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 609658 + ... + 657046.

Almost surely, 2^30013917928 is an apocalyptic number.

It is an amenable number.

30013917928 is a deficient number, since it is larger than the sum of its proper divisors (29586589472).

30013917928 is a wasteful number, since it uses less digits than its factorization.

30013917928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52069 (or 52065 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 43.

The spelling of 30013917928 in words is "thirty billion, thirteen million, nine hundred seventeen thousand, nine hundred twenty-eight".