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313875231 = 3195506583
BaseRepresentation
bin10010101101010…
…101101100011111
3210212121111212120
4102231111230133
51120323001411
651051234023
710530616065
oct2255255437
9725544776
10313875231
111511a111a
1289148913
13500484b7
142d986035
151c850106
hex12b55b1f

313875231 has 8 divisors (see below), whose sum is σ = 440526720. Its totient is φ = 198236952.

The previous prime is 313875229. The next prime is 313875257. The reversal of 313875231 is 132578313.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 313875231 - 21 = 313875229 is a prime.

It is a super-2 number, since 2×3138752312 = 197035321270606722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 313875192 and 313875201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313875271) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2753235 + ... + 2753348.

It is an arithmetic number, because the mean of its divisors is an integer number (55065840).

Almost surely, 2313875231 is an apocalyptic number.

313875231 is a deficient number, since it is larger than the sum of its proper divisors (126651489).

313875231 is a wasteful number, since it uses less digits than its factorization.

313875231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5506605.

The product of its digits is 15120, while the sum is 33.

The square root of 313875231 is about 17716.5242358652. The cubic root of 313875231 is about 679.5984011319.

The spelling of 313875231 in words is "three hundred thirteen million, eight hundred seventy-five thousand, two hundred thirty-one".

Divisors: 1 3 19 57 5506583 16519749 104625077 313875231