68310100 has 36 divisors (see below), whose sum is σ = 151857468. Its totient is φ = 26656000.

The previous prime is 68310091. The next prime is 68310107. The reversal of 68310100 is 101386.

It can be written as a sum of positive squares in 6 ways, for example, as 11819844 + 56490256 = 3438^2 + 7516^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68310107) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4231 + ... + 12430.

It is an arithmetic number, because the mean of its divisors is an integer number (4218263).

Almost surely, 2^68310100 is an apocalyptic number.

It is an amenable number.

68310100 is an abundant number, since it is smaller than the sum of its proper divisors (83547368).

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

68310100 is a wasteful number, since it uses less digits than its factorization.

68310100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16716 (or 16709 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 68310100 is about 8264.9924379881. The cubic root of 68310100 is about 408.7850210184.

Adding to 68310100 its reverse (101386), we get a palindrome (68411486).

The spelling of 68310100 in words is "sixty-eight million, three hundred ten thousand, one hundred".