31028104 has 16 divisors (see below), whose sum is σ = 60707520. Its totient is φ = 14839440.

The previous prime is 31028093. The next prime is 31028143. The reversal of 31028104 is 40182013.

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 3 ways as a sum of consecutive naturals, for example, 84132 + ... + 84499.

It is an arithmetic number, because the mean of its divisors is an integer number (3794220).

Almost surely, 2^31028104 is an apocalyptic number.

It is an amenable number.

31028104 is a deficient number, since it is larger than the sum of its proper divisors (29679416).

31028104 is a wasteful number, since it uses less digits than its factorization.

31028104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168660 (or 168656 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 31028104 is about 5570.2876047831. The cubic root of 31028104 is about 314.2329670628.

The spelling of 31028104 in words is "thirty-one million, twenty-eight thousand, one hundred four".