30913316 has 18 divisors (see below), whose sum is σ = 62931078. Its totient is φ = 13248480.

The previous prime is 30913307. The next prime is 30913339. The reversal of 30913316 is 61331903.

It can be written as a sum of positive squares in only one way, i.e., 29658916 + 1254400 = 5446^2 + 1120^2 .

It is a super-2 number, since 2×30913316² = 1911266212231712, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 78665 + ... + 79056.

It is an arithmetic number, because the mean of its divisors is an integer number (3496171).

Almost surely, 2^30913316 is an apocalyptic number.

It is an amenable number.

30913316 is an abundant number, since it is smaller than the sum of its proper divisors (32017762).

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

30913316 is a wasteful number, since it uses less digits than its factorization.

30913316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157739 (or 157730 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 26.

The square root of 30913316 is about 5559.9744603730. The cubic root of 30913316 is about 313.8449881967.

The spelling of 30913316 in words is "thirty million, nine hundred thirteen thousand, three hundred sixteen".