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316231664 = 2472823497
BaseRepresentation
bin10010110110010…
…100111111110000
3211001001020021212
4102312110333300
51121423403124
651213535252
710556632130
oct2266247760
9731036255
10316231664
11152560591
1289aa4528
1350691c38
142dddaac0
151cb6840e
hex12d94ff0

316231664 has 20 divisors (see below), whose sum is σ = 700227504. Its totient is φ = 135527808.

The previous prime is 316231639. The next prime is 316231667. The reversal of 316231664 is 466132613.

It is a self number, because there is not a number n which added to its sum of digits gives 316231664.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (316231667) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1411637 + ... + 1411860.

Almost surely, 2316231664 is an apocalyptic number.

It is an amenable number.

316231664 is an abundant number, since it is smaller than the sum of its proper divisors (383995840).

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

316231664 is a wasteful number, since it uses less digits than its factorization.

316231664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2823512 (or 2823506 counting only the distinct ones).

The product of its digits is 15552, while the sum is 32.

The square root of 316231664 is about 17782.9036999023. The cubic root of 316231664 is about 681.2948683632.

The spelling of 316231664 in words is "three hundred sixteen million, two hundred thirty-one thousand, six hundred sixty-four".

Divisors: 1 2 4 7 8 14 16 28 56 112 2823497 5646994 11293988 19764479 22587976 39528958 45175952 79057916 158115832 316231664