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12713688137671 = 61208421117011
BaseRepresentation
bin1011100100000010001011…
…0111010111111111000111
31200000102020210012221102021
42321000202313113333013
53131300113130401141
643012330535424011
72451351021050653
oct271004267277707
950012223187367
1012713688137671
114061932565974
121513bb8525007
13712b84976471
1431d4babb9a63
15170aa3a576d1
hexb9022dd7fc7

12713688137671 has 4 divisors (see below), whose sum is σ = 12922109254744. Its totient is φ = 12505267020600.

The previous prime is 12713688137609. The next prime is 12713688137677. The reversal of 12713688137671 is 17673188631721.

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

It is a cyclic number.

It is not a de Polignac number, because 12713688137671 - 219 = 12713687613383 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (61), and also a Moran number because the ratio is a prime number: 208421117011 = 12713688137671 / (1 + 2 + 7 + 1 + 3 + 6 + 8 + 8 + 1 + 3 + 7 + 6 + 7 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12713688137677) 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, 104210558445 + ... + 104210558566.

It is an arithmetic number, because the mean of its divisors is an integer number (3230527313686).

Almost surely, 212713688137671 is an apocalyptic number.

12713688137671 is a deficient number, since it is larger than the sum of its proper divisors (208421117073).

12713688137671 is an equidigital number, since it uses as much as digits as its factorization.

12713688137671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208421117072.

The product of its digits is 14224896, while the sum is 61.

The spelling of 12713688137671 in words is "twelve trillion, seven hundred thirteen billion, six hundred eighty-eight million, one hundred thirty-seven thousand, six hundred seventy-one".

Divisors: 1 61 208421117011 12713688137671