68310500 has 24 divisors (see below), whose sum is σ = 149191224. Its totient is φ = 27324000.

The previous prime is 68310499. The next prime is 68310509. The reversal of 68310500 is 501386.

It can be written as a sum of positive squares in 4 ways, for example, as 9205156 + 59105344 = 3034^2 + 7688^2 .

It is not an unprimeable number, because it can be changed into a prime (68310509) 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 7 ways as a sum of consecutive naturals, for example, 67811 + ... + 68810.

It is an arithmetic number, because the mean of its divisors is an integer number (6216301).

Almost surely, 2^68310500 is an apocalyptic number.

It is an amenable number.

68310500 is an abundant number, since it is smaller than the sum of its proper divisors (80880724).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68310500 is a wasteful number, since it uses less digits than its factorization.

68310500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136640 (or 136628 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 68310500 is about 8265.0166364019. The cubic root of 68310500 is about 408.7858189175.

Adding to 68310500 its reverse (501386), we get a palindrome (68811886).

The spelling of 68310500 in words is "sixty-eight million, three hundred ten thousand, five hundred".