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12856612384841 = 234311296944657
BaseRepresentation
bin1011101100010110100111…
…0100000111000001001001
31200112002011102101222011012
42323011221310013001021
53141120320232303331
643202125102213305
72464600561106141
oct273055164070111
950462142358135
1012856612384841
11410750557a205
121537845584235
137234b1318814
14326398931921
1517466b35782b
hexbb169d07049

12856612384841 has 8 divisors (see below), whose sum is σ = 13446722214144. Its totient is φ = 12269096445760.

The previous prime is 12856612384817. The next prime is 12856612384871. The reversal of 12856612384841 is 14848321665821.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12856612384841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12856612384871) 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, 648462416 + ... + 648482241.

It is an arithmetic number, because the mean of its divisors is an integer number (1680840276768).

Almost surely, 212856612384841 is an apocalyptic number.

It is an amenable number.

12856612384841 is a deficient number, since it is larger than the sum of its proper divisors (590109829303).

12856612384841 is a wasteful number, since it uses less digits than its factorization.

12856612384841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1296945111.

The product of its digits is 17694720, while the sum is 59.

The spelling of 12856612384841 in words is "twelve trillion, eight hundred fifty-six billion, six hundred twelve million, three hundred eighty-four thousand, eight hundred forty-one".

Divisors: 1 23 431 9913 1296944657 29829727111 558983147167 12856612384841