Base | Representation |
---|---|
bin | 110001100111… |
… | …011111111011 |
3 | 220110211000221 |
4 | 301213133323 |
5 | 11312204333 |
6 | 1142440511 |
7 | 215361553 |
oct | 61473773 |
9 | 26424027 |
10 | 13006843 |
11 | 7384263 |
12 | 4433137 |
13 | 2905375 |
14 | 1a28163 |
15 | 121dd2d |
hex | c677fb |
13006843 has 2 divisors, whose sum is σ = 13006844. Its totient is φ = 13006842.
The previous prime is 13006837. The next prime is 13006867. The reversal of 13006843 is 34860031.
13006843 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 13006843 - 217 = 12875771 is a prime.
It is the 3607-th Hogben number.
It is not a weakly prime, because it can be changed into another prime (13001843) by changing a digit.
It is a nontrivial repunit in base 3606.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6503421 + 6503422.
It is an arithmetic number, because the mean of its divisors is an integer number (6503422).
Almost surely, 213006843 is an apocalyptic number.
13006843 is a deficient number, since it is larger than the sum of its proper divisors (1).
13006843 is an equidigital number, since it uses as much as digits as its factorization.
13006843 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 1728, while the sum is 25.
The square root of 13006843 is about 3606.5001039789. The cubic root of 13006843 is about 235.1747184154.
Adding to 13006843 its reverse (34860031), we get a palindrome (47866874).
The spelling of 13006843 in words is "thirteen million, six thousand, eight hundred forty-three".
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