30238013 has 8 divisors (see below), whose sum is σ = 32610648. Its totient is φ = 27872064.

The previous prime is 30238003. The next prime is 30238049. The reversal of 30238013 is 31083203.

It can be written as a sum of positive squares in 4 ways, for example, as 2968729 + 27269284 = 1723^2 + 5222^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30238013 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30238003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11795 + ... + 14127.

It is an arithmetic number, because the mean of its divisors is an integer number (4076331).

Almost surely, 2^30238013 is an apocalyptic number.

It is an amenable number.

30238013 is a deficient number, since it is larger than the sum of its proper divisors (2372635).

30238013 is a wasteful number, since it uses less digits than its factorization.

30238013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3343.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 30238013 is about 5498.9101647508. The cubic root of 30238013 is about 311.5428222276.

The spelling of 30238013 in words is "thirty million, two hundred thirty-eight thousand, thirteen".