Base | Representation |
---|---|
bin | 10111101000100010… |
… | …01000111000110011 |
3 | 1012202020211122101220 |
4 | 23310101020320303 |
5 | 201441121140042 |
6 | 5455005200123 |
7 | 626264541216 |
oct | 136421107063 |
9 | 35666748356 |
10 | 12688068147 |
11 | 54210a1437 |
12 | 2561260043 |
13 | 1272886c41 |
14 | 88516b77d |
15 | 4e3d878ec |
hex | 2f4448e33 |
12688068147 has 8 divisors (see below), whose sum is σ = 16938033360. Its totient is φ = 8448407520.
The previous prime is 12688068097. The next prime is 12688068149. The reversal of 12688068147 is 74186088621.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 12688068147 - 216 = 12688002611 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 12688068147.
It is not an unprimeable number, because it can be changed into a prime (12688068149) 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, 2573272 + ... + 2578197.
It is an arithmetic number, because the mean of its divisors is an integer number (2117254170).
Almost surely, 212688068147 is an apocalyptic number.
12688068147 is a deficient number, since it is larger than the sum of its proper divisors (4249965213).
12688068147 is an equidigital number, since it uses as much as digits as its factorization.
12688068147 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5152293.
The product of its (nonzero) digits is 1032192, while the sum is 51.
The spelling of 12688068147 in words is "twelve billion, six hundred eighty-eight million, sixty-eight thousand, one hundred forty-seven".
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