Base | Representation |
---|---|
bin | 110010101000… |
… | …000010111011 |
3 | 220222020200221 |
4 | 302220002323 |
5 | 11344134402 |
6 | 1152240511 |
7 | 220542424 |
oct | 62500273 |
9 | 26866627 |
10 | 13271227 |
11 | 7544962 |
12 | 4540137 |
13 | 29987c8 |
14 | 1a9664b |
15 | 1272337 |
hex | ca80bb |
13271227 has 2 divisors, whose sum is σ = 13271228. Its totient is φ = 13271226.
The previous prime is 13271213. The next prime is 13271257. The reversal of 13271227 is 72217231.
It is a weak prime.
It is an emirp because it is prime and its reverse (72217231) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 13271227 - 219 = 12746939 is a prime.
It is a super-2 number, since 2×132712272 = 352250932171058, which contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (13271257) 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, 6635613 + 6635614.
It is an arithmetic number, because the mean of its divisors is an integer number (6635614).
Almost surely, 213271227 is an apocalyptic number.
13271227 is a deficient number, since it is larger than the sum of its proper divisors (1).
13271227 is an equidigital number, since it uses as much as digits as its factorization.
13271227 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 1176, while the sum is 25.
The square root of 13271227 is about 3642.9695304792. The cubic root of 13271227 is about 236.7574711619.
Adding to 13271227 its reverse (72217231), we get a palindrome (85488458).
The spelling of 13271227 in words is "thirteen million, two hundred seventy-one thousand, two hundred twenty-seven".
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