30680109 has 12 divisors (see below), whose sum is σ = 44431452. Its totient is φ = 20400000.

The previous prime is 30680107. The next prime is 30680119. The reversal of 30680109 is 90108603.

It can be written as a sum of positive squares in 2 ways, for example, as 18275625 + 12404484 = 4275^2 + 3522^2 .

It is not a de Polignac number, because 30680109 - 2¹ = 30680107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30680101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 642 + ... + 7859.

It is an arithmetic number, because the mean of its divisors is an integer number (3702621).

Almost surely, 2^30680109 is an apocalyptic number.

It is an amenable number.

30680109 is a deficient number, since it is larger than the sum of its proper divisors (13751343).

30680109 is a wasteful number, since it uses less digits than its factorization.

30680109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8908 (or 8905 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 30680109 is about 5538.9628090465. The cubic root of 30680109 is about 313.0537900865.

The spelling of 30680109 in words is "thirty million, six hundred eighty thousand, one hundred nine".