Base | Representation |
---|---|
bin | 10111111110000010… |
… | …01010000101011111 |
3 | 1020012211012212210011 |
4 | 23333001022011133 |
5 | 202323304200002 |
6 | 5524531024051 |
7 | 633614556112 |
oct | 137701120537 |
9 | 36184185704 |
10 | 12868428127 |
11 | 550398a575 |
12 | 25b173b027 |
13 | 12a1055919 |
14 | 8a10ba579 |
15 | 504b128d7 |
hex | 2ff04a15f |
12868428127 has 2 divisors, whose sum is σ = 12868428128. Its totient is φ = 12868428126.
The previous prime is 12868428119. The next prime is 12868428169. The reversal of 12868428127 is 72182486821.
It is a weak prime.
It is an emirp because it is prime and its reverse (72182486821) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 12868428127 - 23 = 12868428119 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (12868428427) by changing a digit.
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 as a sum of consecutive naturals, namely, 6434214063 + 6434214064.
It is an arithmetic number, because the mean of its divisors is an integer number (6434214064).
Almost surely, 212868428127 is an apocalyptic number.
12868428127 is a deficient number, since it is larger than the sum of its proper divisors (1).
12868428127 is an equidigital number, since it uses as much as digits as its factorization.
12868428127 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 688128, while the sum is 49.
The spelling of 12868428127 in words is "twelve billion, eight hundred sixty-eight million, four hundred twenty-eight thousand, one hundred twenty-seven".
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