Base | Representation |
---|---|
bin | 101111011110… |
… | …000000101101 |
3 | 212102012112112 |
4 | 233132000231 |
5 | 11141144233 |
6 | 1122413405 |
7 | 210524663 |
oct | 57360055 |
9 | 25365475 |
10 | 12443693 |
11 | 702a149 |
12 | 4201265 |
13 | 2768c42 |
14 | 191cc33 |
15 | 115c048 |
hex | bde02d |
12443693 has 2 divisors, whose sum is σ = 12443694. Its totient is φ = 12443692.
The previous prime is 12443687. The next prime is 12443701. The reversal of 12443693 is 39634421.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 10259209 + 2184484 = 3203^2 + 1478^2 .
It is an emirp because it is prime and its reverse (39634421) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 12443693 - 214 = 12427309 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (12443633) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6221846 + 6221847.
It is an arithmetic number, because the mean of its divisors is an integer number (6221847).
Almost surely, 212443693 is an apocalyptic number.
It is an amenable number.
12443693 is a deficient number, since it is larger than the sum of its proper divisors (1).
12443693 is an equidigital number, since it uses as much as digits as its factorization.
12443693 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 15552, while the sum is 32.
The square root of 12443693 is about 3527.5619059061. The cubic root of 12443693 is about 231.7304452064.
The spelling of 12443693 in words is "twelve million, four hundred forty-three thousand, six hundred ninety-three".
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