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12681126115 = 5717113188609
BaseRepresentation
bin10111100111101101…
…01010000011100011
31012201202202221201121
423303312222003203
5201432332013430
65454200313111
7626151536110
oct136366520343
935652687647
1012681126115
11541818a819
12255aa72797
1312712c6228
14884281907
154e3465a7a
hex2f3daa0e3

12681126115 has 32 divisors (see below), whose sum is σ = 18577330560. Its totient is φ = 8111652864.

The previous prime is 12681126103. The next prime is 12681126131. The reversal of 12681126115 is 51162118621.

It is not a de Polignac number, because 12681126115 - 25 = 12681126083 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27070 + ... + 161539.

It is an arithmetic number, because the mean of its divisors is an integer number (580541580).

Almost surely, 212681126115 is an apocalyptic number.

12681126115 is a deficient number, since it is larger than the sum of its proper divisors (5896204445).

12681126115 is a wasteful number, since it uses less digits than its factorization.

12681126115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188751.

The product of its digits is 5760, while the sum is 34.

The spelling of 12681126115 in words is "twelve billion, six hundred eighty-one million, one hundred twenty-six thousand, one hundred fifteen".

Divisors: 1 5 7 17 35 85 113 119 565 595 791 1921 3955 9605 13447 67235 188609 943045 1320263 3206353 6601315 16031765 21312817 22444471 106564085 112222355 149189719 362317889 745948595 1811589445 2536225223 12681126115