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317065540 = 225111975853
BaseRepresentation
bin10010111001100…
…000100101000100
3211002121121011011
4102321200211010
51122132044130
651243452004
710600004221
oct2271404504
9732547134
10317065540
11152a80040
128a227004
13508c465c
1430176948
151cc8052a
hex12e60944

317065540 has 48 divisors (see below), whose sum is σ = 764608320. Its totient is φ = 109226880.

The previous prime is 317065537. The next prime is 317065571. The reversal of 317065540 is 45560713.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33747 + ... + 42106.

It is an arithmetic number, because the mean of its divisors is an integer number (15929340).

Almost surely, 2317065540 is an apocalyptic number.

It is an amenable number.

317065540 is an abundant number, since it is smaller than the sum of its proper divisors (447542780).

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

317065540 is a wasteful number, since it uses less digits than its factorization.

317065540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75892 (or 75890 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 31.

The square root of 317065540 is about 17806.3342662099. The cubic root of 317065540 is about 681.8931816433.

The spelling of 317065540 in words is "three hundred seventeen million, sixty-five thousand, five hundred forty".

Divisors: 1 2 4 5 10 11 19 20 22 38 44 55 76 95 110 190 209 220 380 418 836 1045 2090 4180 75853 151706 303412 379265 758530 834383 1441207 1517060 1668766 2882414 3337532 4171915 5764828 7206035 8343830 14412070 15853277 16687660 28824140 31706554 63413108 79266385 158532770 317065540