30450013 has 6 divisors (see below), whose sum is σ = 33469982. Its totient is φ = 27681720.

The previous prime is 30450011. The next prime is 30450019. The reversal of 30450013 is 31005403.

It can be written as a sum of positive squares in only one way, i.e., 16297369 + 14152644 = 4037^2 + 3762^2 .

It is not a de Polignac number, because 30450013 - 2¹ = 30450011 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 (30450011) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 125706 + ... + 125947.

Almost surely, 2^30450013 is an apocalyptic number.

It is an amenable number.

30450013 is a deficient number, since it is larger than the sum of its proper divisors (3019969).

30450013 is a wasteful number, since it uses less digits than its factorization.

30450013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251675 (or 251664 counting only the distinct ones).

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

The square root of 30450013 is about 5518.1530424590. The cubic root of 30450013 is about 312.2692072998.

Adding to 30450013 its reverse (31005403), we get a palindrome (61455416).

The spelling of 30450013 in words is "thirty million, four hundred fifty thousand, thirteen".