30513936 has 20 divisors (see below), whose sum is σ = 78827792. Its totient is φ = 10171296.

The previous prime is 30513911. The next prime is 30513941. The reversal of 30513936 is 63931503.

It is a super-2 number, since 2×30513936² = 1862200580424192, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 317806 + ... + 317901.

Almost surely, 2^30513936 is an apocalyptic number.

It is an amenable number.

30513936 is an abundant number, since it is smaller than the sum of its proper divisors (48313856).

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

30513936 is a wasteful number, since it uses less digits than its factorization.

30513936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 635718 (or 635712 counting only the distinct ones).

The product of its (nonzero) digits is 7290, while the sum is 30.

The square root of 30513936 is about 5523.9420706593. The cubic root of 30513936 is about 312.4875677187.

It can be divided in two parts, 305 and 13936, that added together give a palindrome (14241).

The spelling of 30513936 in words is "thirty million, five hundred thirteen thousand, nine hundred thirty-six".