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317994152 = 2378963803
BaseRepresentation
bin10010111101000…
…011010010101000
3211011100202222012
4102331003102220
51122401303102
651315415052
710610622440
oct2275032250
9734322865
10317994152
11153554793
128a5b4488
1350b5b228
1430339120
151cdb5752
hex12f434a8

317994152 has 32 divisors (see below), whose sum is σ = 689083200. Its totient is φ = 134749824.

The previous prime is 317994143. The next prime is 317994179. The reversal of 317994152 is 251499713.

It is a super-2 number, since 2×3179941522 = 202240561412398208, which contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 26918 + ... + 36885.

It is an arithmetic number, because the mean of its divisors is an integer number (21533850).

Almost surely, 2317994152 is an apocalyptic number.

It is an amenable number.

317994152 is an abundant number, since it is smaller than the sum of its proper divisors (371089048).

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

317994152 is a wasteful number, since it uses less digits than its factorization.

317994152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63905 (or 63901 counting only the distinct ones).

The product of its digits is 68040, while the sum is 41.

The square root of 317994152 is about 17832.3905295953. The cubic root of 317994152 is about 682.5582355367.

The spelling of 317994152 in words is "three hundred seventeen million, nine hundred ninety-four thousand, one hundred fifty-two".

Divisors: 1 2 4 7 8 14 28 56 89 178 356 623 712 1246 2492 4984 63803 127606 255212 446621 510424 893242 1786484 3572968 5678467 11356934 22713868 39749269 45427736 79498538 158997076 317994152