100389500 has 24 divisors (see below), whose sum is σ = 219251760. Its totient is φ = 40155600.

The previous prime is 100389493. The next prime is 100389557. The reversal of 100389500 is 5983001.

It is a self number, because there is not a number n which added to its sum of digits gives 100389500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99890 + ... + 100889.

It is an arithmetic number, because the mean of its divisors is an integer number (9135490).

Almost surely, 2^100389500 is an apocalyptic number.

100389500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100389500 is an abundant number, since it is smaller than the sum of its proper divisors (118862260).

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

100389500 is a wasteful number, since it uses less digits than its factorization.

100389500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200798 (or 200786 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 100389500 is about 10019.4560730611. The cubic root of 100389500 is about 464.7607355817.

The spelling of 100389500 in words is "one hundred million, three hundred eighty-nine thousand, five hundred".