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317274440 = 23574724109
BaseRepresentation
bin10010111010010…
…011100101001000
3211010000012201012
4102322103211020
51122210240230
651252143052
710601534240
oct2272234510
9733005635
10317274440
11153102a8a
128a307a88
1350968772
14301ccb20
151ccc2395
hex12e93948

317274440 has 64 divisors (see below), whose sum is σ = 833241600. Its totient is φ = 106460928.

The previous prime is 317274439. The next prime is 317274473. The reversal of 317274440 is 44472713.

It is a junction number, because it is equal to n+sod(n) for n = 317274397 and 317274406.

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 15 ways as a sum of consecutive naturals, for example, 1106 + ... + 25214.

It is an arithmetic number, because the mean of its divisors is an integer number (13019400).

Almost surely, 2317274440 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 317274440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (416620800).

317274440 is an abundant number, since it is smaller than the sum of its proper divisors (515967160).

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

317274440 is a wasteful number, since it uses less digits than its factorization.

317274440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24174 (or 24170 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 32.

The square root of 317274440 is about 17812.1991904425. The cubic root of 317274440 is about 682.0429048552.

The spelling of 317274440 in words is "three hundred seventeen million, two hundred seventy-four thousand, four hundred forty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 47 56 70 94 140 188 235 280 329 376 470 658 940 1316 1645 1880 2632 3290 6580 13160 24109 48218 96436 120545 168763 192872 241090 337526 482180 675052 843815 964360 1133123 1350104 1687630 2266246 3375260 4532492 5665615 6750520 7931861 9064984 11331230 15863722 22662460 31727444 39659305 45324920 63454888 79318610 158637220 317274440