30293072520 has 64 divisors (see below), whose sum is σ = 90902286720. Its totient is φ = 8076102144.

The previous prime is 30293072477. The next prime is 30293072527. The reversal of 30293072520 is 2527039203.

It is not an unprimeable number, because it can be changed into a prime (30293072527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 476109 + ... + 535971.

It is an arithmetic number, because the mean of its divisors is an integer number (1420348230).

Almost surely, 2^30293072520 is an apocalyptic number.

30293072520 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30293072520 is an abundant number, since it is smaller than the sum of its proper divisors (60609214200).

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

30293072520 is a wasteful number, since it uses less digits than its factorization.

30293072520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64094 (or 64090 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 33.

The spelling of 30293072520 in words is "thirty billion, two hundred ninety-three million, seventy-two thousand, five hundred twenty".