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313118811 = 3311596993
BaseRepresentation
bin10010101010011…
…101000001011011
3210211012002021000
4102222131001123
51120124300221
651023120043
710521315555
oct2252350133
9724162230
10313118811
11150824885
1288a43023
134cb42105
142d82a4d5
151c750e26
hex12a9d05b

313118811 has 8 divisors (see below), whose sum is σ = 463879760. Its totient is φ = 208745856.

The previous prime is 313118807. The next prime is 313118831. The reversal of 313118811 is 118811313.

It is not a de Polignac number, because 313118811 - 22 = 313118807 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 11596993 = 313118811 / (3 + 1 + 3 + 1 + 1 + 8 + 8 + 1 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (313118831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5798470 + ... + 5798523.

It is an arithmetic number, because the mean of its divisors is an integer number (57984970).

Almost surely, 2313118811 is an apocalyptic number.

313118811 is a deficient number, since it is larger than the sum of its proper divisors (150760949).

313118811 is a wasteful number, since it uses less digits than its factorization.

313118811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11597002 (or 11596996 counting only the distinct ones).

The product of its digits is 576, while the sum is 27.

The square root of 313118811 is about 17695.1634917567. The cubic root of 313118811 is about 679.0520318765.

The spelling of 313118811 in words is "three hundred thirteen million, one hundred eighteen thousand, eight hundred eleven".

Divisors: 1 3 9 27 11596993 34790979 104372937 313118811