Base | Representation |
---|---|
bin | 110000101101… |
… | …011010000101 |
3 | 220000201122021 |
4 | 300231122011 |
5 | 11232101101 |
6 | 1133403141 |
7 | 213351055 |
oct | 60553205 |
9 | 26021567 |
10 | 12768901 |
11 | 7231512 |
12 | 43394b1 |
13 | 2850c82 |
14 | 19a5565 |
15 | 11c35a1 |
hex | c2d685 |
12768901 has 2 divisors, whose sum is σ = 12768902. Its totient is φ = 12768900.
The previous prime is 12768881. The next prime is 12768907. The reversal of 12768901 is 10986721.
It is a happy number.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 11390625 + 1378276 = 3375^2 + 1174^2 .
It is an emirp because it is prime and its reverse (10986721) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 12768901 - 27 = 12768773 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (12768907) 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, 6384450 + 6384451.
It is an arithmetic number, because the mean of its divisors is an integer number (6384451).
Almost surely, 212768901 is an apocalyptic number.
It is an amenable number.
12768901 is a deficient number, since it is larger than the sum of its proper divisors (1).
12768901 is an equidigital number, since it uses as much as digits as its factorization.
12768901 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 6048, while the sum is 34.
The square root of 12768901 is about 3573.3599035082. The cubic root of 12768901 is about 233.7318195322.
The spelling of 12768901 in words is "twelve million, seven hundred sixty-eight thousand, nine hundred one".
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