68012930 has 16 divisors (see below), whose sum is σ = 122547384. Its totient is φ = 27177600.

The previous prime is 68012929. The next prime is 68012957. The reversal of 68012930 is 3921086.

It can be written as a sum of positive squares in 4 ways, for example, as 63377521 + 4635409 = 7961^2 + 2153^2 .

It is a junction number, because it is equal to n+sod(n) for n = 68012893 and 68012902.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 9080 + ... + 14780.

Almost surely, 2^68012930 is an apocalyptic number.

68012930 is a deficient number, since it is larger than the sum of its proper divisors (54534454).

68012930 is a wasteful number, since it uses less digits than its factorization.

68012930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6901.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 68012930 is about 8246.9952103781. The cubic root of 68012930 is about 408.1913790426.

The spelling of 68012930 in words is "sixty-eight million, twelve thousand, nine hundred thirty".