100019982 has 8 divisors (see below), whose sum is σ = 200039976. Its totient is φ = 33339992.

The previous prime is 100019977. The next prime is 100020023. The reversal of 100019982 is 289910001.

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

100019982 is an admirable number.

It is a congruent number.

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, 8334993 + ... + 8335004.

It is an arithmetic number, because the mean of its divisors is an integer number (25004997).

Almost surely, 2^100019982 is an apocalyptic number.

100019982 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

100019982 is a wasteful number, since it uses less digits than its factorization.

100019982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16670002.

The product of its (nonzero) digits is 1296, while the sum is 30.

The square root of 100019982 is about 10000.9990500949. Note that the first 3 decimals coincide. The cubic root of 100019982 is about 464.1897973783.

Adding to 100019982 its reverse (289910001), we get a palindrome (389929983).

The spelling of 100019982 in words is "one hundred million, nineteen thousand, nine hundred eighty-two".