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313631204 = 22142954869
BaseRepresentation
bin10010101100011…
…010000111100100
3210212011010010112
4102230122013210
51120242144304
651042112152
710525551455
oct2254320744
9725133115
10313631204
11151044847
128904b658
134cc913c3
142d92112c
151c802b6e
hex12b1a1e4

313631204 has 12 divisors (see below), whose sum is σ = 549248700. Its totient is φ = 156703008.

The previous prime is 313631179. The next prime is 313631209. The reversal of 313631204 is 402136313.

It can be written as a sum of positive squares in 2 ways, for example, as 25989604 + 287641600 = 5098^2 + 16960^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 313631204.

It is not an unprimeable number, because it can be changed into a prime (313631209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21719 + ... + 33150.

It is an arithmetic number, because the mean of its divisors is an integer number (45770725).

Almost surely, 2313631204 is an apocalyptic number.

It is an amenable number.

313631204 is a deficient number, since it is larger than the sum of its proper divisors (235617496).

313631204 is a wasteful number, since it uses less digits than its factorization.

313631204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56302 (or 56300 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 313631204 is about 17709.6359081716. The cubic root of 313631204 is about 679.4222341505.

Adding to 313631204 its reverse (402136313), we get a palindrome (715767517).

The spelling of 313631204 in words is "three hundred thirteen million, six hundred thirty-one thousand, two hundred four".

Divisors: 1 2 4 1429 2858 5716 54869 109738 219476 78407801 156815602 313631204