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316985144 = 2375660449
BaseRepresentation
bin10010111001001…
…100111100111000
3211002110111212112
4102321030330320
51122122011034
651242031452
710566220640
oct2271147470
9732414775
10316985144
11152a256a3
128a1a8588
1350896b98
1430155520
151cc667ce
hex12e4cf38

316985144 has 16 divisors (see below), whose sum is σ = 679254000. Its totient is φ = 135850752.

The previous prime is 316985143. The next prime is 316985161. The reversal of 316985144 is 441589613.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (316985143) 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, 2830169 + ... + 2830280.

It is an arithmetic number, because the mean of its divisors is an integer number (42453375).

Almost surely, 2316985144 is an apocalyptic number.

It is an amenable number.

316985144 is an abundant number, since it is smaller than the sum of its proper divisors (362268856).

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

316985144 is a wasteful number, since it uses less digits than its factorization.

316985144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5660462 (or 5660458 counting only the distinct ones).

The product of its digits is 103680, while the sum is 41.

The square root of 316985144 is about 17804.0766118325. The cubic root of 316985144 is about 681.8355425419.

The spelling of 316985144 in words is "three hundred sixteen million, nine hundred eighty-five thousand, one hundred forty-four".

Divisors: 1 2 4 7 8 14 28 56 5660449 11320898 22641796 39623143 45283592 79246286 158492572 316985144