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12715387727 = 71995604419
BaseRepresentation
bin10111101011110010…
…10110101101001111
31012211011020121211012
423311321112231033
5202020114401402
65501422515435
7630046004150
oct136571265517
935734217735
1012715387727
115435560aa9
12256a435b7b
131278430b83
14888a3d927
154e6482452
hex2f5e56b4f

12715387727 has 8 divisors (see below), whose sum is σ = 15296707200. Its totient is φ = 10325277144.

The previous prime is 12715387721. The next prime is 12715387733. The reversal of 12715387727 is 72778351721.

It is an interprime number because it is at equal distance from previous prime (12715387721) and next prime (12715387733).

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

It is not a de Polignac number, because 12715387727 - 218 = 12715125583 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 (12715387721) 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, 47802077 + ... + 47802342.

It is an arithmetic number, because the mean of its divisors is an integer number (1912088400).

Almost surely, 212715387727 is an apocalyptic number.

12715387727 is a deficient number, since it is larger than the sum of its proper divisors (2581319473).

12715387727 is an equidigital number, since it uses as much as digits as its factorization.

12715387727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95604445.

The product of its digits is 1152480, while the sum is 50.

The spelling of 12715387727 in words is "twelve billion, seven hundred fifteen million, three hundred eighty-seven thousand, seven hundred twenty-seven".

Divisors: 1 7 19 133 95604419 669230933 1816483961 12715387727