30083972 has 6 divisors (see below), whose sum is σ = 52646958. Its totient is φ = 15041984.

The previous prime is 30083969. The next prime is 30084001. The reversal of 30083972 is 27938003.

It can be written as a sum of positive squares in only one way, i.e., 22052416 + 8031556 = 4696^2 + 2834^2 .

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 as a sum of consecutive naturals, namely, 3760493 + ... + 3760500.

It is an arithmetic number, because the mean of its divisors is an integer number (8774493).

Almost surely, 2^30083972 is an apocalyptic number.

It is an amenable number.

30083972 is a deficient number, since it is larger than the sum of its proper divisors (22562986).

30083972 is a wasteful number, since it uses less digits than its factorization.

30083972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7520997 (or 7520995 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 30083972 is about 5484.8857782091. The cubic root of 30083972 is about 311.0128922189.

The spelling of 30083972 in words is "thirty million, eighty-three thousand, nine hundred seventy-two".