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317688084 = 223276591913
BaseRepresentation
bin10010111011111…
…000100100010100
3211010210020010100
4102323320210110
51122312004314
651305054100
710605206220
oct2273704424
9733706110
10317688084
1115336583a
128a487330
1350a81b1c
1430299780
151cd54c09
hex12ef8914

317688084 has 72 divisors (see below), whose sum is σ = 919638720. Its totient is φ = 90582912.

The previous prime is 317688083. The next prime is 317688103. The reversal of 317688084 is 480886713.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (317688083) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 165112 + ... + 167024.

It is an arithmetic number, because the mean of its divisors is an integer number (12772760).

Almost surely, 2317688084 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 317688084, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (459819360).

317688084 is an abundant number, since it is smaller than the sum of its proper divisors (601950636).

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

317688084 is a wasteful number, since it uses less digits than its factorization.

317688084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2589 (or 2584 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The square root of 317688084 is about 17823.8066641220. The cubic root of 317688084 is about 682.3391787885.

The spelling of 317688084 in words is "three hundred seventeen million, six hundred eighty-eight thousand, eighty-four".

Divisors: 1 2 3 4 6 7 9 12 14 18 21 28 36 42 63 84 126 252 659 1318 1913 1977 2636 3826 3954 4613 5739 5931 7652 7908 9226 11478 11862 13391 13839 17217 18452 22956 23724 26782 27678 34434 40173 41517 53564 55356 68868 80346 83034 120519 160692 166068 241038 482076 1260667 2521334 3782001 5042668 7564002 8824669 11346003 15128004 17649338 22692006 26474007 35298676 45384012 52948014 79422021 105896028 158844042 317688084