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8313057 = 33307891
BaseRepresentation
bin11111101101100011100001
3120122100101000
4133231203201
54112004212
6454102213
7130442214
oct37554341
916570330
108313057
1147687a5
12294a969
131950a8c
14116577b
15ae31dc
hex7ed8e1

8313057 has 8 divisors (see below), whose sum is σ = 12315680. Its totient is φ = 5542020.

The previous prime is 8313043. The next prime is 8313077. The reversal of 8313057 is 7503138.

It is not a de Polignac number, because 8313057 - 210 = 8312033 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: 307891 = 8313057 / (8 + 3 + 1 + 3 + 0 + 5 + 7).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8313057.

It is not an unprimeable number, because it can be changed into a prime (8313077) 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, 153919 + ... + 153972.

It is an arithmetic number, because the mean of its divisors is an integer number (1539460).

Almost surely, 28313057 is an apocalyptic number.

It is an amenable number.

8313057 is a deficient number, since it is larger than the sum of its proper divisors (4002623).

8313057 is a wasteful number, since it uses less digits than its factorization.

8313057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307900 (or 307894 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 8313057 is about 2883.2372431002. The cubic root of 8313057 is about 202.5754999679.

The spelling of 8313057 in words is "eight million, three hundred thirteen thousand, fifty-seven".

Divisors: 1 3 9 27 307891 923673 2771019 8313057