Base | Representation |
---|---|
bin | 110010011111… |
… | …100100111101 |
3 | 220220111010021 |
4 | 302133210331 |
5 | 11342032131 |
6 | 1151412141 |
7 | 220336333 |
oct | 62374475 |
9 | 26814107 |
10 | 13236541 |
11 | 752089a |
12 | 4524051 |
13 | 2985a96 |
14 | 1a87b53 |
15 | 1266e11 |
hex | c9f93d |
13236541 has 2 divisors, whose sum is σ = 13236542. Its totient is φ = 13236540.
The previous prime is 13236539. The next prime is 13236547. The reversal of 13236541 is 14563231.
13236541 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 can be written as a sum of positive squares in only one way, i.e., 11356900 + 1879641 = 3370^2 + 1371^2 .
It is an emirp because it is prime and its reverse (14563231) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 13236541 - 21 = 13236539 is a prime.
Together with 13236539, it forms a pair of twin primes.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (13236547) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6618270 + 6618271.
It is an arithmetic number, because the mean of its divisors is an integer number (6618271).
Almost surely, 213236541 is an apocalyptic number.
It is an amenable number.
13236541 is a deficient number, since it is larger than the sum of its proper divisors (1).
13236541 is an equidigital number, since it uses as much as digits as its factorization.
13236541 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 2160, while the sum is 25.
The square root of 13236541 is about 3638.2057390972. The cubic root of 13236541 is about 236.5510261823.
Adding to 13236541 its reverse (14563231), we get a palindrome (27799772).
The spelling of 13236541 in words is "thirteen million, two hundred thirty-six thousand, five hundred forty-one".
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