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313116557 = 13178111747
BaseRepresentation
bin10010101010011…
…100011110001101
3210211011222011112
4102222130132031
51120124212212
651023101405
710521306155
oct2252343615
9724158145
10313116557
11150823116
1288a41865
134cb41090
142d829765
151c750422
hex12a9c78d

313116557 has 16 divisors (see below), whose sum is σ = 357682752. Its totient is φ = 271537920.

The previous prime is 313116547. The next prime is 313116571. The reversal of 313116557 is 755611313.

It is a cyclic number.

It is not a de Polignac number, because 313116557 - 26 = 313116493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313116547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 178358 + ... + 180104.

It is an arithmetic number, because the mean of its divisors is an integer number (22355172).

Almost surely, 2313116557 is an apocalyptic number.

It is an amenable number.

313116557 is a deficient number, since it is larger than the sum of its proper divisors (44566195).

313116557 is a wasteful number, since it uses less digits than its factorization.

313116557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2588.

The product of its digits is 9450, while the sum is 32.

The square root of 313116557 is about 17695.0998019226. The cubic root of 313116557 is about 679.0504024769.

The spelling of 313116557 in words is "three hundred thirteen million, one hundred sixteen thousand, five hundred fifty-seven".

Divisors: 1 13 17 221 811 1747 10543 13787 22711 29699 179231 386087 1416817 18418621 24085889 313116557