30308799988 has 6 divisors (see below), whose sum is σ = 53040399986. Its totient is φ = 15154399992.

The previous prime is 30308799971. The next prime is 30308800007. The reversal of 30308799988 is 88999780303.

It can be written as a sum of positive squares in only one way, i.e., 24695493904 + 5613306084 = 157148^2 + 74922^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3788599995 + ... + 3788600002.

Almost surely, 2^30308799988 is an apocalyptic number.

It is an amenable number.

30308799988 is a deficient number, since it is larger than the sum of its proper divisors (22731599998).

30308799988 is a wasteful number, since it uses less digits than its factorization.

30308799988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7577200001 (or 7577199999 counting only the distinct ones).

The product of its (nonzero) digits is 23514624, while the sum is 64.

The spelling of 30308799988 in words is "thirty billion, three hundred eight million, seven hundred ninety-nine thousand, nine hundred eighty-eight".