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317668512 = 2537472721
BaseRepresentation
bin10010111011110…
…011110010100000
3211010202020021110
4102323303302200
51122310343022
651304423320
710605065160
oct2273636240
9733666243
10317668512
11153352067
128a477b40
1350a75c45
14302925a0
151cd4e00c
hex12ef3ca0

317668512 has 48 divisors (see below), whose sum is σ = 953007552. Its totient is φ = 90762240.

The previous prime is 317668499. The next prime is 317668513. The reversal of 317668512 is 215866713.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (317668513) 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, 235689 + ... + 237032.

It is an arithmetic number, because the mean of its divisors is an integer number (19854324).

Almost surely, 2317668512 is an apocalyptic number.

317668512 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

317668512 is an abundant number, since it is smaller than the sum of its proper divisors (635339040).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

317668512 is a wasteful number, since it uses less digits than its factorization.

317668512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472741 (or 472733 counting only the distinct ones).

The product of its digits is 60480, while the sum is 39.

The square root of 317668512 is about 17823.2576147011. The cubic root of 317668512 is about 682.3251660747.

The spelling of 317668512 in words is "three hundred seventeen million, six hundred sixty-eight thousand, five hundred twelve".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 56 84 96 112 168 224 336 672 472721 945442 1418163 1890884 2836326 3309047 3781768 5672652 6618094 7563536 9927141 11345304 13236188 15127072 19854282 22690608 26472376 39708564 45381216 52944752 79417128 105889504 158834256 317668512