100030072 has 8 divisors (see below), whose sum is σ = 187556400. Its totient is φ = 50015032.

The previous prime is 100030069. The next prime is 100030081. The reversal of 100030072 is 270030001.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6251872 + ... + 6251887.

It is an arithmetic number, because the mean of its divisors is an integer number (23444550).

Almost surely, 2^100030072 is an apocalyptic number.

It is an amenable number.

100030072 is a deficient number, since it is larger than the sum of its proper divisors (87526328).

100030072 is a wasteful number, since it uses less digits than its factorization.

100030072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12503765 (or 12503761 counting only the distinct ones).

The product of its (nonzero) digits is 42, while the sum is 13.

The square root of 100030072 is about 10001.5034869763. The cubic root of 100030072 is about 464.2054059846.

Adding to 100030072 its reverse (270030001), we get a palindrome (370060073).

The spelling of 100030072 in words is "one hundred million, thirty thousand, seventy-two".