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316956345 = 3521130423
BaseRepresentation
bin10010111001000…
…101111010111001
3211002102001100220
4102321011322321
51122120100340
651241250253
710566040656
oct2271057271
9732361326
10316956345
11152a05aa2
128a193989
1350886a44
1430148c2d
151cc5ced0
hex12e45eb9

316956345 has 8 divisors (see below), whose sum is σ = 507130176. Its totient is φ = 169043376.

The previous prime is 316956337. The next prime is 316956371. The reversal of 316956345 is 543659613.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 316956345 - 23 = 316956337 is a prime.

It is a super-2 number, since 2×3169563452 = 200922649271518050, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 316956297 and 316956306.

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, 10565197 + ... + 10565226.

It is an arithmetic number, because the mean of its divisors is an integer number (63391272).

Almost surely, 2316956345 is an apocalyptic number.

It is an amenable number.

316956345 is a deficient number, since it is larger than the sum of its proper divisors (190173831).

316956345 is a wasteful number, since it uses less digits than its factorization.

316956345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21130431.

The product of its digits is 291600, while the sum is 42.

The square root of 316956345 is about 17803.2678180159. The cubic root of 316956345 is about 681.8148930185.

The spelling of 316956345 in words is "three hundred sixteen million, nine hundred fifty-six thousand, three hundred forty-five".

Divisors: 1 3 5 15 21130423 63391269 105652115 316956345