Base | Representation |
---|---|
bin | 110000100111… |
… | …101010010001 |
3 | 212222112100102 |
4 | 300213222101 |
5 | 11230322421 |
6 | 1133102145 |
7 | 213222326 |
oct | 60475221 |
9 | 25875312 |
10 | 12745361 |
11 | 7215862 |
12 | 4327955 |
13 | 2843345 |
14 | 199ab4d |
15 | 11bb60b |
hex | c27a91 |
12745361 has 2 divisors, whose sum is σ = 12745362. Its totient is φ = 12745360.
The previous prime is 12745351. The next prime is 12745363. The reversal of 12745361 is 16354721.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 10660225 + 2085136 = 3265^2 + 1444^2 .
It is an emirp because it is prime and its reverse (16354721) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 12745361 - 214 = 12728977 is a prime.
Together with 12745363, it forms a pair of twin primes.
It is a Chen prime.
It is not a weakly prime, because it can be changed into another prime (12745363) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6372680 + 6372681.
It is an arithmetic number, because the mean of its divisors is an integer number (6372681).
Almost surely, 212745361 is an apocalyptic number.
It is an amenable number.
12745361 is a deficient number, since it is larger than the sum of its proper divisors (1).
12745361 is an equidigital number, since it uses as much as digits as its factorization.
12745361 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 5040, while the sum is 29.
The square root of 12745361 is about 3570.0645652425. The cubic root of 12745361 is about 233.5880997351.
The spelling of 12745361 in words is "twelve million, seven hundred forty-five thousand, three hundred sixty-one".
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