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316587140 = 22546134337
BaseRepresentation
bin10010110111101…
…011110010000100
3211001201021220122
4102313223302010
51122021242030
651225321112
710562642402
oct2267536204
9731637818
10316587140
11152783671
128a036198
135078798c
1430090472
151cbd88e5
hex12debc84

316587140 has 24 divisors (see below), whose sum is σ = 666294552. Its totient is φ = 126356480.

The previous prime is 316587137. The next prime is 316587163. The reversal of 316587140 is 41785613.

It can be written as a sum of positive squares in 4 ways, for example, as 12503296 + 304083844 = 3536^2 + 17438^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 316587140.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7949 + ... + 26388.

It is an arithmetic number, because the mean of its divisors is an integer number (27762273).

Almost surely, 2316587140 is an apocalyptic number.

It is an amenable number.

316587140 is an abundant number, since it is smaller than the sum of its proper divisors (349707412).

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

316587140 is a wasteful number, since it uses less digits than its factorization.

316587140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34807 (or 34805 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 316587140 is about 17792.8957733136. The cubic root of 316587140 is about 681.5500539465.

The spelling of 316587140 in words is "three hundred sixteen million, five hundred eighty-seven thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 461 922 1844 2305 4610 9220 34337 68674 137348 171685 343370 686740 15829357 31658714 63317428 79146785 158293570 316587140