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317950853 = 1122627693
BaseRepresentation
bin10010111100111…
…000101110000101
3211011021120120112
4102330320232011
51122343411403
651314442405
710610352263
oct2274705605
9734246515
10317950853
11153525200
128a593405
1350b445cc
1430327433
151cda79d8
hex12f38b85

317950853 has 6 divisors (see below), whose sum is σ = 349483302. Its totient is φ = 289046120.

The previous prime is 317950811. The next prime is 317950907. The reversal of 317950853 is 358059713.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 308599489 + 9351364 = 17567^2 + 3058^2 .

It is a de Polignac number, because none of the positive numbers 2k-317950853 is a prime.

It is a super-4 number, since 4×3179508534 (a number of 35 digits) contains 4444 as substring.

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 317950853.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (317950153) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1313726 + ... + 1313967.

It is an arithmetic number, because the mean of its divisors is an integer number (58247217).

Almost surely, 2317950853 is an apocalyptic number.

It is an amenable number.

317950853 is a deficient number, since it is larger than the sum of its proper divisors (31532449).

317950853 is a wasteful number, since it uses less digits than its factorization.

317950853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2627715 (or 2627704 counting only the distinct ones).

The product of its (nonzero) digits is 113400, while the sum is 41.

The square root of 317950853 is about 17831.1764334269. The cubic root of 317950853 is about 682.5272544319.

The spelling of 317950853 in words is "three hundred seventeen million, nine hundred fifty thousand, eight hundred fifty-three".

Divisors: 1 11 121 2627693 28904623 317950853