30312052 has 6 divisors (see below), whose sum is σ = 53046098. Its totient is φ = 15156024.

The previous prime is 30312013. The next prime is 30312053. The reversal of 30312052 is 25021303.

It can be written as a sum of positive squares in only one way, i.e., 28451556 + 1860496 = 5334^2 + 1364^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30312053) by changing a digit.

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 as a sum of consecutive naturals, namely, 3789003 + ... + 3789010.

Almost surely, 2^30312052 is an apocalyptic number.

It is an amenable number.

30312052 is a deficient number, since it is larger than the sum of its proper divisors (22734046).

30312052 is a wasteful number, since it uses less digits than its factorization.

30312052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7578017 (or 7578015 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 30312052 is about 5505.6382009718. The cubic root of 30312052 is about 311.7968900496.

Adding to 30312052 its reverse (25021303), we get a palindrome (55333355).

The spelling of 30312052 in words is "thirty million, three hundred twelve thousand, fifty-two".