204730100 has 36 divisors (see below), whose sum is σ = 445328268. Its totient is φ = 81696000.

The previous prime is 204730093. The next prime is 204730147. The reversal of 204730100 is 1037402.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 16875664 + 187854436 = 4108^2 + 13706^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43880 + ... + 48320.

Almost surely, 2^204730100 is an apocalyptic number.

204730100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204730100 is an abundant number, since it is smaller than the sum of its proper divisors (240598168).

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

204730100 is a wasteful number, since it uses less digits than its factorization.

204730100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4916 (or 4909 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 17.

The square root of 204730100 is about 14308.3926420825. The cubic root of 204730100 is about 589.3779712657.

Adding to 204730100 its reverse (1037402), we get a palindrome (205767502).

The spelling of 204730100 in words is "two hundred four million, seven hundred thirty thousand, one hundred".