100685320 has 16 divisors (see below), whose sum is σ = 226542060. Its totient is φ = 40274112.

The previous prime is 100685297. The next prime is 100685341. The reversal of 100685320 is 23586001.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 95765796 + 4919524 = 9786^2 + 2218^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1258527 + ... + 1258606.

Almost surely, 2^100685320 is an apocalyptic number.

100685320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100685320 is an abundant number, since it is smaller than the sum of its proper divisors (125856740).

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

100685320 is a wasteful number, since it uses less digits than its factorization.

100685320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2517144 (or 2517140 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 100685320 is about 10034.2074923733. The cubic root of 100685320 is about 465.2167948892.

The spelling of 100685320 in words is "one hundred million, six hundred eighty-five thousand, three hundred twenty".