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317245313 = 71117242357
BaseRepresentation
bin10010111010001…
…100011110000001
3211002221201202102
4102322030132001
51122203322223
651251400145
710601353310
oct2272143601
9732851672
10317245313
11153093110
128a2b3055
1350958428
14301c2277
151ccb8928
hex12e8c781

317245313 has 16 divisors (see below), whose sum is σ = 418794624. Its totient is φ = 232661760.

The previous prime is 317245303. The next prime is 317245321. The reversal of 317245313 is 313542713.

It is a cyclic number.

It is not a de Polignac number, because 317245313 - 212 = 317241217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (317245303) 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 15 ways as a sum of consecutive naturals, for example, 119870 + ... + 122487.

It is an arithmetic number, because the mean of its divisors is an integer number (26174664).

Almost surely, 2317245313 is an apocalyptic number.

It is an amenable number.

317245313 is a deficient number, since it is larger than the sum of its proper divisors (101549311).

317245313 is a wasteful number, since it uses less digits than its factorization.

317245313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242392.

The product of its digits is 7560, while the sum is 29.

The square root of 317245313 is about 17811.3815578691. The cubic root of 317245313 is about 682.0220328391.

The spelling of 317245313 in words is "three hundred seventeen million, two hundred forty-five thousand, three hundred thirteen".

Divisors: 1 7 11 17 77 119 187 1309 242357 1696499 2665927 4120069 18661489 28840483 45320759 317245313