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12839814867 = 3111277304687
BaseRepresentation
bin10111111010101000…
…00000011011010011
31020010211101011202210
423331110000123103
5202243443033432
65522025443203
7633116424405
oct137524003323
936124334683
1012839814867
115499816a50
1225a4040503
131298147bb9
1489b38cb75
1550235e8cc
hex2fd5006d3

12839814867 has 16 divisors (see below), whose sum is σ = 18690780672. Its totient is φ = 7775586720.

The previous prime is 12839814863. The next prime is 12839814899. The reversal of 12839814867 is 76841893821.

12839814867 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12839814867 - 22 = 12839814863 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12839814863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110203 + ... + 194484.

It is an arithmetic number, because the mean of its divisors is an integer number (1168173792).

Almost surely, 212839814867 is an apocalyptic number.

12839814867 is a deficient number, since it is larger than the sum of its proper divisors (5850965805).

12839814867 is a wasteful number, since it uses less digits than its factorization.

12839814867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305978.

The product of its digits is 4644864, while the sum is 57.

The spelling of 12839814867 in words is "twelve billion, eight hundred thirty-nine million, eight hundred fourteen thousand, eight hundred sixty-seven".

Divisors: 1 3 11 33 1277 3831 14047 42141 304687 914061 3351557 10054671 389085299 1167255897 4279938289 12839814867