30989950 has 24 divisors (see below), whose sum is σ = 60676920. Its totient is φ = 11743200.

The previous prime is 30989939. The next prime is 30989989. The reversal of 30989950 is 5998903.

It is a junction number, because it is equal to n+sod(n) for n = 30989897 and 30989906.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 15361 + ... + 17260.

It is an arithmetic number, because the mean of its divisors is an integer number (2528205).

Almost surely, 2^30989950 is an apocalyptic number.

30989950 is a deficient number, since it is larger than the sum of its proper divisors (29686970).

30989950 is a wasteful number, since it uses less digits than its factorization.

30989950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32652 (or 32647 counting only the distinct ones).

The product of its (nonzero) digits is 87480, while the sum is 43.

The square root of 30989950 is about 5566.8617730280. The cubic root of 30989950 is about 314.1041143920.

The spelling of 30989950 in words is "thirty million, nine hundred eighty-nine thousand, nine hundred fifty".