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312717914 = 25317317053
BaseRepresentation
bin10010101000111…
…011001001011010
3210210102201022222
4102220323021122
51120023433124
651010344042
710515026015
oct2250731132
9723381288
10312717914
11150580663
128888b022
134ca317b2
142d76437c
151c6c225e
hex12a3b25a

312717914 has 16 divisors (see below), whose sum is σ = 480718152. Its totient is φ = 152513088.

The previous prime is 312717901. The next prime is 312717919. The reversal of 312717914 is 419717213.

It can be written as a sum of positive squares in 4 ways, for example, as 309232225 + 3485689 = 17585^2 + 1867^2 .

It is a super-2 number, since 2×3127179142 = 195584987473022792, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (312717919) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9812 + ... + 26864.

Almost surely, 2312717914 is an apocalyptic number.

312717914 is a deficient number, since it is larger than the sum of its proper divisors (168000238).

312717914 is a wasteful number, since it uses less digits than its factorization.

312717914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17281.

The product of its digits is 10584, while the sum is 35.

The square root of 312717914 is about 17683.8319942257. The cubic root of 312717914 is about 678.7621033920.

The spelling of 312717914 in words is "three hundred twelve million, seven hundred seventeen thousand, nine hundred fourteen".

Divisors: 1 2 53 106 173 346 9169 17053 18338 34106 903809 1807618 2950169 5900338 156358957 312717914