30115250 has 64 divisors (see below), whose sum is σ = 63078912. Its totient is φ = 10672000.

The previous prime is 30115237. The next prime is 30115301. The reversal of 30115250 is 5251103.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 129134 + ... + 129366.

It is an arithmetic number, because the mean of its divisors is an integer number (985608).

Almost surely, 2^30115250 is an apocalyptic number.

30115250 is an abundant number, since it is smaller than the sum of its proper divisors (32963662).

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

30115250 is a wasteful number, since it uses less digits than its factorization.

30115250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308 (or 298 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 17.

The square root of 30115250 is about 5487.7363274851. The cubic root of 30115250 is about 311.1206405339.

Adding to 30115250 its reverse (5251103), we get a palindrome (35366353).

It can be divided in two parts, 301 and 15250, that added together give a palindrome (15551).

The spelling of 30115250 in words is "thirty million, one hundred fifteen thousand, two hundred fifty".