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12871980796571 = 131399707757233
BaseRepresentation
bin1011101101001111110111…
…0101111100101010011011
31200120112211110210011201122
42323103331311330222123
53141343304040442241
643213150100435455
72465653453335221
oct273237565745233
950515743704648
1012871980796571
114112a81651426
12153a8143a8b8b
13724a90296280
14327015a56b11
15174c6a69104b
hexbb4fdd7ca9b

12871980796571 has 8 divisors (see below), whose sum is σ = 13872041786400. Its totient is φ = 11873335324032.

The previous prime is 12871980796559. The next prime is 12871980796601. The reversal of 12871980796571 is 17569708917821.

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

It is a de Polignac number, because none of the positive numbers 2k-12871980796571 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12871980796495 and 12871980796504.

It is not an unprimeable number, because it can be changed into a prime (12871980796501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 353860430 + ... + 353896803.

It is an arithmetic number, because the mean of its divisors is an integer number (1734005223300).

Almost surely, 212871980796571 is an apocalyptic number.

12871980796571 is a deficient number, since it is larger than the sum of its proper divisors (1000060989829).

12871980796571 is a wasteful number, since it uses less digits than its factorization.

12871980796571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 707758645.

The product of its (nonzero) digits is 106686720, while the sum is 71.

The spelling of 12871980796571 in words is "twelve trillion, eight hundred seventy-one billion, nine hundred eighty million, seven hundred ninety-six thousand, five hundred seventy-one".

Divisors: 1 13 1399 18187 707757233 9200844029 990152368967 12871980796571