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12871558679342 = 21113926915647371
BaseRepresentation
bin1011101101001110010010…
…1011101100101100101110
31200120111202001111101202012
42323103210223230230232
53141341423010214332
643213040141201222
72465640136365566
oct273234453545456
950514661441665
1012871558679342
11411288534a510
12153a716b60212
13724a239ac96c
14326db5975da6
15174c435ae3b2
hexbb4e4aecb2e

12871558679342 has 32 divisors (see below), whose sum is σ = 21292943817600. Its totient is φ = 5787023320800.

The previous prime is 12871558679327. The next prime is 12871558679347. The reversal of 12871558679342 is 24397685517821.

It is a Smith number, since the sum of its digits (68) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12871558679347) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7001084 + ... + 8646287.

It is an arithmetic number, because the mean of its divisors is an integer number (665404494300).

Almost surely, 212871558679342 is an apocalyptic number.

12871558679342 is a deficient number, since it is larger than the sum of its proper divisors (8421385138258).

12871558679342 is a wasteful number, since it uses less digits than its factorization.

12871558679342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15647792.

The product of its digits is 203212800, while the sum is 68.

The spelling of 12871558679342 in words is "twelve trillion, eight hundred seventy-one billion, five hundred fifty-eight million, six hundred seventy-nine thousand, three hundred forty-two".

Divisors: 1 2 11 22 139 269 278 538 1529 2959 3058 5918 37391 74782 411301 822602 15647371 31294742 172121081 344242162 2174984569 4209142799 4349969138 8418285598 23924830259 46300570789 47849660518 92601141578 585070849061 1170141698122 6435779339671 12871558679342