30047013 has 6 divisors (see below), whose sum is σ = 43401254. Its totient is φ = 20031336.

The previous prime is 30046979. The next prime is 30047027. The reversal of 30047013 is 31074003.

It can be written as a sum of positive squares in only one way, i.e., 29615364 + 431649 = 5442^2 + 657^2 .

It is not a de Polignac number, because 30047013 - 2⁶ = 30046949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30047093) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1669270 + ... + 1669287.

Almost surely, 2^30047013 is an apocalyptic number.

It is an amenable number.

30047013 is a deficient number, since it is larger than the sum of its proper divisors (13354241).

30047013 is a wasteful number, since it uses less digits than its factorization.

30047013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3338563 (or 3338560 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 18.

The square root of 30047013 is about 5481.5155750942. The cubic root of 30047013 is about 310.8854773517.

The spelling of 30047013 in words is "thirty million, forty-seven thousand, thirteen".