30500013 has 4 divisors (see below), whose sum is σ = 40666688. Its totient is φ = 20333340.

The previous prime is 30500011. The next prime is 30500059. The reversal of 30500013 is 31000503.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 30500013 - 2¹ = 30500011 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30500011) 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 in 3 ways as a sum of consecutive naturals, for example, 5083333 + ... + 5083338.

It is an arithmetic number, because the mean of its divisors is an integer number (10166672).

Almost surely, 2^30500013 is an apocalyptic number.

It is an amenable number.

30500013 is a deficient number, since it is larger than the sum of its proper divisors (10166675).

30500013 is a wasteful number, since it uses less digits than its factorization.

30500013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10166674.

The product of its (nonzero) digits is 45, while the sum is 12.

The square root of 30500013 is about 5522.6816855582. The cubic root of 30500013 is about 312.4400328667.

Adding to 30500013 its reverse (31000503), we get a palindrome (61500516).

The spelling of 30500013 in words is "thirty million, five hundred thousand, thirteen".