Base | Representation |
---|---|
bin | 110001000111… |
… | …011000001111 |
3 | 220020010120012 |
4 | 301013120033 |
5 | 11244002104 |
6 | 1135543435 |
7 | 214303154 |
oct | 61073017 |
9 | 26203505 |
10 | 12875279 |
11 | 72a442a |
12 | 438ab7b |
13 | 288a511 |
14 | 19d222b |
15 | 11e4d6e |
hex | c4760f |
12875279 has 2 divisors, whose sum is σ = 12875280. Its totient is φ = 12875278.
The previous prime is 12875251. The next prime is 12875281. The reversal of 12875279 is 97257821.
12875279 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a strong prime.
It is an emirp because it is prime and its reverse (97257821) is a distict prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-12875279 is a prime.
Together with 12875281, it forms a pair of twin primes.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (12875249) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6437639 + 6437640.
It is an arithmetic number, because the mean of its divisors is an integer number (6437640).
Almost surely, 212875279 is an apocalyptic number.
12875279 is a deficient number, since it is larger than the sum of its proper divisors (1).
12875279 is an equidigital number, since it uses as much as digits as its factorization.
12875279 is an evil number, because the sum of its binary digits is even.
The product of its digits is 70560, while the sum is 41.
The square root of 12875279 is about 3588.2139010934. The cubic root of 12875279 is about 234.3791003490.
The spelling of 12875279 in words is "twelve million, eight hundred seventy-five thousand, two hundred seventy-nine".
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