30930256900 has 81 divisors (see below), whose sum is σ = 68884276671. Its totient is φ = 12054833280.

The previous prime is 30930256897. The next prime is 30930256949. The reversal of 30930256900 is 965203903.

The square root of 30930256900 is 175870.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 3551921604 + 27378335296 = 59598^2 + 165464^2 .

It is a super-2 number, since 2×30930256900² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30930256900.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 75623896 + ... + 75624304.

Almost surely, 2^30930256900 is an apocalyptic number.

30930256900 is the 175870-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30930256900

30930256900 is an abundant number, since it is smaller than the sum of its proper divisors (37954019771).

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

30930256900 is an equidigital number, since it uses as much as digits as its factorization.

30930256900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 918 (or 459 counting only the distinct ones).

The product of its (nonzero) digits is 43740, while the sum is 37.

The spelling of 30930256900 in words is "thirty billion, nine hundred thirty million, two hundred fifty-six thousand, nine hundred".