100382978 has 8 divisors (see below), whose sum is σ = 155766780. Its totient is φ = 48460720.

The previous prime is 100382969. The next prime is 100382983. The reversal of 100382978 is 879283001.

It can be written as a sum of positive squares in 2 ways, for example, as 90878089 + 9504889 = 9533^2 + 3083^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 865313 + ... + 865428.

Almost surely, 2^100382978 is an apocalyptic number.

100382978 is a deficient number, since it is larger than the sum of its proper divisors (55383802).

100382978 is a wasteful number, since it uses less digits than its factorization.

100382978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1730772.

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 100382978 is about 10019.1306010053. The cubic root of 100382978 is about 464.7506706674.

The spelling of 100382978 in words is "one hundred million, three hundred eighty-two thousand, nine hundred seventy-eight".