204750100 has 18 divisors (see below), whose sum is σ = 444307934. Its totient is φ = 81900000.

The previous prime is 204750059. The next prime is 204750103. The reversal of 204750100 is 1057402.

It can be written as a sum of positive squares in 3 ways, for example, as 66781584 + 137968516 = 8172^2 + 11746^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204750103) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1023651 + ... + 1023850.

Almost surely, 2^204750100 is an apocalyptic number.

204750100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204750100 is an abundant number, since it is smaller than the sum of its proper divisors (239557834).

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

204750100 is a wasteful number, since it uses less digits than its factorization.

204750100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2047515 (or 2047508 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 204750100 is about 14309.0915155365. The cubic root of 204750100 is about 589.3971626720.

The spelling of 204750100 in words is "two hundred four million, seven hundred fifty thousand, one hundred".