100002900 has 72 divisors (see below), whose sum is σ = 298703104. Its totient is φ = 25804800.

The previous prime is 100002899. The next prime is 100002937. The reversal of 100002900 is 9200001.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3924 + ... + 14676.

Almost surely, 2^100002900 is an apocalyptic number.

100002900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 100002900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (149351552).

100002900 is an abundant number, since it is smaller than the sum of its proper divisors (198700204).

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

100002900 is a wasteful number, since it uses less digits than its factorization.

100002900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10801 (or 10794 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 100002900 is about 10000.1449989488. The cubic root of 100002900 is about 464.1633701871.

Adding to 100002900 its reverse (9200001), we get a palindrome (109202901).

The spelling of 100002900 in words is "one hundred million, two thousand, nine hundred".