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316290871 = 13234771317
BaseRepresentation
bin10010110110100…
…011011100110111
3211001011020111201
4102312203130313
51121432301441
651215113331
710560266551
oct2266433467
9731136451
10316290871
111525a1016
1289b12847
13506b2b80
14300144d1
151cb7ac31
hex12da3737

316290871 has 32 divisors (see below), whose sum is σ = 369266688. Its totient is φ = 268625280.

The previous prime is 316290869. The next prime is 316290881. The reversal of 316290871 is 178092613.

It is not a de Polignac number, because 316290871 - 21 = 316290869 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 316290871.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (316290841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 997605 + ... + 997921.

It is an arithmetic number, because the mean of its divisors is an integer number (11539584).

Almost surely, 2316290871 is an apocalyptic number.

316290871 is a deficient number, since it is larger than the sum of its proper divisors (52975817).

316290871 is a wasteful number, since it uses less digits than its factorization.

316290871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471.

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 316290871 is about 17784.5683388718. The cubic root of 316290871 is about 681.3373845654.

The spelling of 316290871 in words is "three hundred sixteen million, two hundred ninety thousand, eight hundred seventy-one".

Divisors: 1 13 23 47 71 299 317 611 923 1081 1633 3337 4121 7291 14053 14899 21229 22507 43381 76751 94783 193687 292591 342677 517661 997763 1057829 4454801 6729593 13751777 24330067 316290871