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313768839 = 3671561039
BaseRepresentation
bin10010101100111…
…011101110000111
3210212102002221010
4102230323232013
51120311100324
651045053303
710526663646
oct2254735607
9725362833
10313768839
1115112919a
12890b7233
135000bc47
142d95935d
151c82d829
hex12b3bb87

313768839 has 8 divisors (see below), whose sum is σ = 424602880. Its totient is φ = 206057016.

The previous prime is 313768837. The next prime is 313768853. The reversal of 313768839 is 938867313.

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

It is not a de Polignac number, because 313768839 - 21 = 313768837 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 (313768837) 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 7 ways as a sum of consecutive naturals, for example, 780319 + ... + 780720.

It is an arithmetic number, because the mean of its divisors is an integer number (53075360).

Almost surely, 2313768839 is an apocalyptic number.

313768839 is a deficient number, since it is larger than the sum of its proper divisors (110834041).

313768839 is a wasteful number, since it uses less digits than its factorization.

313768839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1561109.

The product of its digits is 653184, while the sum is 48.

The square root of 313768839 is about 17713.5213608136. The cubic root of 313768839 is about 679.5216062817.

The spelling of 313768839 in words is "three hundred thirteen million, seven hundred sixty-eight thousand, eight hundred thirty-nine".

Divisors: 1 3 67 201 1561039 4683117 104589613 313768839