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313816893 = 31317944953
BaseRepresentation
bin10010101101000…
…111011100111101
3210212111112211220
4102231013130331
51120314120033
651050103553
710530254025
oct2255073475
9725445756
10313816893
11151161305
128911abb9
1350027a90
142d96ca85
151c83cbb3
hex12b4773d

313816893 has 16 divisors (see below), whose sum is σ = 453136320. Its totient is φ = 192034944.

The previous prime is 313816861. The next prime is 313816903. The reversal of 313816893 is 398618313.

It is not a de Polignac number, because 313816893 - 25 = 313816861 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313816843) 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 15 ways as a sum of consecutive naturals, for example, 15496 + ... + 29457.

It is an arithmetic number, because the mean of its divisors is an integer number (28321020).

Almost surely, 2313816893 is an apocalyptic number.

It is an amenable number.

313816893 is a deficient number, since it is larger than the sum of its proper divisors (139319427).

313816893 is a wasteful number, since it uses less digits than its factorization.

313816893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45148.

The product of its digits is 93312, while the sum is 42.

The square root of 313816893 is about 17714.8777303147. The cubic root of 313816893 is about 679.5562943072.

The spelling of 313816893 in words is "three hundred thirteen million, eight hundred sixteen thousand, eight hundred ninety-three".

Divisors: 1 3 13 39 179 537 2327 6981 44953 134859 584389 1753167 8046587 24139761 104605631 313816893