30713152 has 28 divisors (see below), whose sum is σ = 64533780. Its totient is φ = 14452736.

The previous prime is 30713149. The next prime is 30713161. The reversal of 30713152 is 25131703.

It can be written as a sum of positive squares in 2 ways, for example, as 10137856 + 20575296 = 3184^2 + 4536^2 .

It is a congruent number.

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, 13027 + ... + 15202.

Almost surely, 2^30713152 is an apocalyptic number.

30713152 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

30713152 is an abundant number, since it is smaller than the sum of its proper divisors (33820628).

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

30713152 is a wasteful number, since it uses less digits than its factorization.

30713152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28258 (or 28248 counting only the distinct ones).

The product of its (nonzero) digits is 630, while the sum is 22.

The square root of 30713152 is about 5541.9447850010. The cubic root of 30713152 is about 313.1661378509.

Adding to 30713152 its reverse (25131703), we get a palindrome (55844855).

The spelling of 30713152 in words is "thirty million, seven hundred thirteen thousand, one hundred fifty-two".