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313813242893 = 1093977251941
BaseRepresentation
bin1001001000100001011…
…10100001010000001101
31010000000011222110201202
410210100232201100031
520120142142233033
6400055214515245
731446404360453
oct4442056412015
91100004873652
10313813242893
111110a6438117
125099b505b25
132379183c107
141128d8c29d3
15826a2018e8
hex4910ba140d

313813242893 has 8 divisors (see below), whose sum is σ = 317490020760. Its totient is φ = 310150969920.

The previous prime is 313813242833. The next prime is 313813242901. The reversal of 313813242893 is 398242318313.

It can be written as a sum of positive squares in 4 ways, for example, as 159805659049 + 154007583844 = 399757^2 + 392438^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-313813242893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313813242803) 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, 3582698 + ... + 3669243.

It is an arithmetic number, because the mean of its divisors is an integer number (39686252595).

Almost surely, 2313813242893 is an apocalyptic number.

It is an amenable number.

313813242893 is a deficient number, since it is larger than the sum of its proper divisors (3676777867).

313813242893 is a wasteful number, since it uses less digits than its factorization.

313813242893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7252447.

The product of its digits is 746496, while the sum is 47.

The spelling of 313813242893 in words is "three hundred thirteen billion, eight hundred thirteen million, two hundred forty-two thousand, eight hundred ninety-three".

Divisors: 1 109 397 43273 7251941 790461569 2879020577 313813242893