30120308 has 6 divisors (see below), whose sum is σ = 52710546. Its totient is φ = 15060152.

The previous prime is 30120289. The next prime is 30120323. The reversal of 30120308 is 80302103.

It can be written as a sum of positive squares in only one way, i.e., 16957924 + 13162384 = 4118^2 + 3628^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3765035 + ... + 3765042.

It is an arithmetic number, because the mean of its divisors is an integer number (8785091).

Almost surely, 2^30120308 is an apocalyptic number.

It is an amenable number.

30120308 is a deficient number, since it is larger than the sum of its proper divisors (22590238).

30120308 is a wasteful number, since it uses less digits than its factorization.

30120308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7530081 (or 7530079 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 30120308 is about 5488.1971538931. The cubic root of 30120308 is about 311.1380576244.

The spelling of 30120308 in words is "thirty million, one hundred twenty thousand, three hundred eight".