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316948986 = 232171035781
BaseRepresentation
bin10010111001000…
…100000111111010
3211002101200021100
4102321010013322
51122114331421
651241152230
710566010344
oct2271040772
9732350240
10316948986
11152a00512
128a18b676
13508835a3
1430146294
151cc5ac26
hex12e441fa

316948986 has 24 divisors (see below), whose sum is σ = 727118964. Its totient is φ = 99434880.

The previous prime is 316948979. The next prime is 316948987. The reversal of 316948986 is 689849613.

It can be written as a sum of positive squares in 2 ways, for example, as 301196025 + 15752961 = 17355^2 + 3969^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (316948987) 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, 517585 + ... + 518196.

Almost surely, 2316948986 is an apocalyptic number.

316948986 is an abundant number, since it is smaller than the sum of its proper divisors (410169978).

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

316948986 is a wasteful number, since it uses less digits than its factorization.

316948986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1035806 (or 1035803 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 54.

The square root of 316948986 is about 17803.0611412757. The cubic root of 316948986 is about 681.8096162512.

The spelling of 316948986 in words is "three hundred sixteen million, nine hundred forty-eight thousand, nine hundred eighty-six".

Divisors: 1 2 3 6 9 17 18 34 51 102 153 306 1035781 2071562 3107343 6214686 9322029 17608277 18644058 35216554 52824831 105649662 158474493 316948986