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317284870 = 25721292
BaseRepresentation
bin10010111010010…
…110001000000110
3211010000202000111
4102322112020012
51122211103440
651252303234
710601606530
oct2272261006
9733022014
10317284870
1115310a901
128a311b1a
1350970436
14301d2850
151ccc54ea
hex12e96206

317284870 has 24 divisors (see below), whose sum is σ = 653007024. Its totient is φ = 108732288.

The previous prime is 317284841. The next prime is 317284873. The reversal of 317284870 is 78482713.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (317284873) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 147966 + ... + 150094.

It is an arithmetic number, because the mean of its divisors is an integer number (27208626).

Almost surely, 2317284870 is an apocalyptic number.

317284870 is an abundant number, since it is smaller than the sum of its proper divisors (335722154).

317284870 is an frugal number, since it uses more digits than its factorization.

317284870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4272 (or 2143 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 40.

The square root of 317284870 is about 17812.4919649105. The cubic root of 317284870 is about 682.0503785422.

The spelling of 317284870 in words is "three hundred seventeen million, two hundred eighty-four thousand, eight hundred seventy".

Divisors: 1 2 5 7 10 14 35 70 2129 4258 10645 14903 21290 29806 74515 149030 4532641 9065282 22663205 31728487 45326410 63456974 158642435 317284870