Base | Representation |
---|---|
bin | 110000110111… |
… | …001010010101 |
3 | 220002202102222 |
4 | 300313022111 |
5 | 11234340403 |
6 | 1134312125 |
7 | 213605411 |
oct | 60671225 |
9 | 26082388 |
10 | 12808853 |
11 | 7259532 |
12 | 4358645 |
13 | 2866205 |
14 | 19b5d41 |
15 | 11d0338 |
hex | c37295 |
12808853 has 2 divisors, whose sum is σ = 12808854. Its totient is φ = 12808852.
The previous prime is 12808847. The next prime is 12808891. The reversal of 12808853 is 35880821.
12808853 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 12794929 + 13924 = 3577^2 + 118^2 .
It is an emirp because it is prime and its reverse (35880821) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 12808853 - 214 = 12792469 is a prime.
It is a Sophie Germain prime.
It is a Chen prime.
It is a Curzon number.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (12808843) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6404426 + 6404427.
It is an arithmetic number, because the mean of its divisors is an integer number (6404427).
Almost surely, 212808853 is an apocalyptic number.
It is an amenable number.
12808853 is a deficient number, since it is larger than the sum of its proper divisors (1).
12808853 is an equidigital number, since it uses as much as digits as its factorization.
12808853 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 15360, while the sum is 35.
The square root of 12808853 is about 3578.9457945043. The cubic root of 12808853 is about 233.9753364806.
The spelling of 12808853 in words is "twelve million, eight hundred eight thousand, eight hundred fifty-three".
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