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313080860381 = 615132473121
BaseRepresentation
bin1001000111001010001…
…00101100111011011101
31002221010010212120210112
410203211010230323131
520112142200013011
6355454413215405
731422302255462
oct4434504547335
91087103776715
10313080860381
1111085aa90313
1250816191565
13236a5ba2493
1411220519669
158225c8458b
hex48e512cedd

313080860381 has 4 divisors (see below), whose sum is σ = 318213333564. Its totient is φ = 307948387200.

The previous prime is 313080860371. The next prime is 313080860413. The reversal of 313080860381 is 183068080313.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 57616321156 + 255464539225 = 240034^2 + 505435^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-313080860381 is a prime.

It is a super-2 number, since 2×3130808603812 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313080860311) 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, 2566236500 + ... + 2566236621.

It is an arithmetic number, because the mean of its divisors is an integer number (79553333391).

Almost surely, 2313080860381 is an apocalyptic number.

It is an amenable number.

313080860381 is a deficient number, since it is larger than the sum of its proper divisors (5132473183).

313080860381 is an equidigital number, since it uses as much as digits as its factorization.

313080860381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5132473182.

The product of its (nonzero) digits is 82944, while the sum is 41.

The spelling of 313080860381 in words is "three hundred thirteen billion, eighty million, eight hundred sixty thousand, three hundred eighty-one".

Divisors: 1 61 5132473121 313080860381