Base | Representation |
---|---|
bin | 10111110101011111… |
… | …11001011100111001 |
3 | 1020000211102112011120 |
4 | 23322233321130321 |
5 | 202201434412211 |
6 | 5513451415453 |
7 | 632054650206 |
oct | 137257713471 |
9 | 36024375146 |
10 | 12796794681 |
11 | 5477503280 |
12 | 2591754589 |
13 | 128c264778 |
14 | 895790cad |
15 | 4ed6b2d06 |
hex | 2fabf9739 |
12796794681 has 8 divisors (see below), whose sum is σ = 18613519584. Its totient is φ = 7755633120.
The previous prime is 12796794617. The next prime is 12796794713. The reversal of 12796794681 is 18649769721.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 12796794681 - 26 = 12796794617 is a prime.
It is a super-2 number, since 2×127967946812 (a number of 21 digits) contains 22 as substring.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (12796894681) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 193890796 + ... + 193890861.
It is an arithmetic number, because the mean of its divisors is an integer number (2326689948).
Almost surely, 212796794681 is an apocalyptic number.
12796794681 is a gapful number since it is divisible by the number (11) formed by its first and last digit.
It is an amenable number.
12796794681 is a deficient number, since it is larger than the sum of its proper divisors (5816724903).
12796794681 is a wasteful number, since it uses less digits than its factorization.
12796794681 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 387781671.
The product of its digits is 9144576, while the sum is 60.
The spelling of 12796794681 in words is "twelve billion, seven hundred ninety-six million, seven hundred ninety-four thousand, six hundred eighty-one".
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