30120052 has 24 divisors (see below), whose sum is σ = 53713800. Its totient is φ = 14776320.

The previous prime is 30120047. The next prime is 30120061. The reversal of 30120052 is 25002103.

It can be written as a sum of positive squares in 4 ways, for example, as 45796 + 30074256 = 214^2 + 5484^2 .

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 57552 + ... + 58072.

It is an arithmetic number, because the mean of its divisors is an integer number (2238075).

Almost surely, 2^30120052 is an apocalyptic number.

It is an amenable number.

30120052 is a deficient number, since it is larger than the sum of its proper divisors (23593748).

30120052 is a wasteful number, since it uses less digits than its factorization.

30120052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 771 (or 769 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 30120052 is about 5488.1738310662. The cubic root of 30120052 is about 311.1371761420.

Adding to 30120052 its reverse (25002103), we get a palindrome (55122155).

The spelling of 30120052 in words is "thirty million, one hundred twenty thousand, fifty-two".