30830013 has 12 divisors (see below), whose sum is σ = 44765500. Its totient is φ = 20445696.

The previous prime is 30829999. The next prime is 30830021. The reversal of 30830013 is 31003803.

It can be written as a sum of positive squares in 2 ways, for example, as 4235364 + 26594649 = 2058^2 + 5157^2 .

It is not a de Polignac number, because 30830013 - 2¹² = 30825917 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 (30830053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7138 + ... + 10611.

Almost surely, 2^30830013 is an apocalyptic number.

It is an amenable number.

30830013 is a deficient number, since it is larger than the sum of its proper divisors (13935487).

30830013 is a wasteful number, since it uses less digits than its factorization.

30830013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17948 (or 17945 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 30830013 is about 5552.4780954093. The cubic root of 30830013 is about 313.5628255612.

Adding to 30830013 its reverse (31003803), we get a palindrome (61833816).

The spelling of 30830013 in words is "thirty million, eight hundred thirty thousand, thirteen".