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12871493177447 = 311181351574477
BaseRepresentation
bin1011101101001110000011…
…0001110101000001100111
31200120111120111020120001002
42323103200301311001213
53141341304223134242
643213025441223515
72465635412545142
oct273234061650147
950514514216032
1012871493177447
114112851380a13
12153a6b9031b9b
13724a13257648
14326daada5059
15174c3c971432
hexbb4e0c75067

12871493177447 has 8 divisors (see below), whose sum is σ = 13297953055872. Its totient is φ = 12445736450400.

The previous prime is 12871493177443. The next prime is 12871493177489. The reversal of 12871493177447 is 74477139417821.

12871493177447 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 12871493177447 - 22 = 12871493177443 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 (12871493177443) 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, 175750628 + ... + 175823849.

It is an arithmetic number, because the mean of its divisors is an integer number (1662244131984).

Almost surely, 212871493177447 is an apocalyptic number.

12871493177447 is a deficient number, since it is larger than the sum of its proper divisors (426459878425).

12871493177447 is a wasteful number, since it uses less digits than its factorization.

12871493177447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351575689.

The product of its digits is 66382848, while the sum is 65.

The spelling of 12871493177447 in words is "twelve trillion, eight hundred seventy-one billion, four hundred ninety-three million, one hundred seventy-seven thousand, four hundred forty-seven".

Divisors: 1 31 1181 36611 351574477 10898808787 415209457337 12871493177447