204000313 has 6 divisors (see below), whose sum is σ = 224231882. Its totient is φ = 185454720.

The previous prime is 204000311. The next prime is 204000343. The reversal of 204000313 is 313000402.

It can be written as a sum of positive squares in only one way, i.e., 200420649 + 3579664 = 14157^2 + 1892^2 .

It is not a de Polignac number, because 204000313 - 2¹ = 204000311 is a prime.

It is a super-2 number, since 2×204000313² = 83232255408195938, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 204000293 and 204000302.

It is not an unprimeable number, because it can be changed into a prime (204000311) 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, 842856 + ... + 843097.

Almost surely, 2^204000313 is an apocalyptic number.

It is an amenable number.

204000313 is a deficient number, since it is larger than the sum of its proper divisors (20231569).

204000313 is a wasteful number, since it uses less digits than its factorization.

204000313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1685975 (or 1685964 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 204000313 is about 14282.8678142732. The cubic root of 204000313 is about 588.6768327597.

Adding to 204000313 its reverse (313000402), we get a palindrome (517000715).

The spelling of 204000313 in words is "two hundred four million, three hundred thirteen", and thus it is an aban number.