30102988 has 12 divisors (see below), whose sum is σ = 55779192. Its totient is φ = 14166080.

The previous prime is 30102959. The next prime is 30102991. The reversal of 30102988 is 88920103.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 221278 + ... + 221413.

It is an arithmetic number, because the mean of its divisors is an integer number (4648266).

Almost surely, 2^30102988 is an apocalyptic number.

It is an amenable number.

30102988 is a deficient number, since it is larger than the sum of its proper divisors (25676204).

30102988 is a wasteful number, since it uses less digits than its factorization.

30102988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442712 (or 442710 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 30102988 is about 5486.6189953377. The cubic root of 30102988 is about 311.0784085618.

The spelling of 30102988 in words is "thirty million, one hundred two thousand, nine hundred eighty-eight".