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317170140 = 223572107881
BaseRepresentation
bin10010111001111…
…010000111011100
3211002210220122020
4102321322013130
51122143421030
651250020140
710600621200
oct2271720734
9732726566
10317170140
11153041691
128a277650
1350930151
14301a2b00
151cca1510
hex12e7a1dc

317170140 has 72 divisors (see below), whose sum is σ = 1033078032. Its totient is φ = 72495360.

The previous prime is 317170121. The next prime is 317170159. The reversal of 317170140 is 41071713.

It is an interprime number because it is at equal distance from previous prime (317170121) and next prime (317170159).

It is a self number, because there is not a number n which added to its sum of digits gives 317170140.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 51001 + ... + 56880.

It is an arithmetic number, because the mean of its divisors is an integer number (14348306).

Almost surely, 2317170140 is an apocalyptic number.

317170140 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

317170140 is an abundant number, since it is smaller than the sum of its proper divisors (715907892).

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

317170140 is a wasteful number, since it uses less digits than its factorization.

317170140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107907 (or 107898 counting only the distinct ones).

The product of its (nonzero) digits is 588, while the sum is 24.

The square root of 317170140 is about 17809.2711810450. The cubic root of 317170140 is about 681.9681589753.

The spelling of 317170140 in words is "three hundred seventeen million, one hundred seventy thousand, one hundred forty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 49 60 70 84 98 105 140 147 196 210 245 294 420 490 588 735 980 1470 2940 107881 215762 323643 431524 539405 647286 755167 1078810 1294572 1510334 1618215 2157620 2265501 3020668 3236430 3775835 4531002 5286169 6472860 7551670 9062004 10572338 11327505 15103340 15858507 21144676 22655010 26430845 31717014 45310020 52861690 63434028 79292535 105723380 158585070 317170140