30120950 has 24 divisors (see below), whose sum is σ = 56185392. Its totient is φ = 12013920.

The previous prime is 30120919. The next prime is 30120953. The reversal of 30120950 is 5902103.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30120953) 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 11 ways as a sum of consecutive naturals, for example, 23732 + ... + 24968.

It is an arithmetic number, because the mean of its divisors is an integer number (2341058).

Almost surely, 2^30120950 is an apocalyptic number.

30120950 is a deficient number, since it is larger than the sum of its proper divisors (26064442).

30120950 is a wasteful number, since it uses less digits than its factorization.

30120950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1736 (or 1731 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 20.

The square root of 30120950 is about 5488.2556427339. The cubic root of 30120950 is about 311.1402681952.

The spelling of 30120950 in words is "thirty million, one hundred twenty thousand, nine hundred fifty".