Base | Representation |
---|---|
bin | 110100010011… |
… | …101100111111 |
3 | 221210122120221 |
4 | 310103230333 |
5 | 12002242231 |
6 | 1205522211 |
7 | 224360143 |
oct | 64235477 |
9 | 27718527 |
10 | 13712191 |
11 | 7816199 |
12 | 4713367 |
13 | 2ac142c |
14 | 1b6d223 |
15 | 130cd11 |
hex | d13b3f |
13712191 has 2 divisors, whose sum is σ = 13712192. Its totient is φ = 13712190.
The previous prime is 13712189. The next prime is 13712219. The reversal of 13712191 is 19121731.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 13712191 - 21 = 13712189 is a prime.
Together with 13712189, 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 (13712161) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6856095 + 6856096.
It is an arithmetic number, because the mean of its divisors is an integer number (6856096).
Almost surely, 213712191 is an apocalyptic number.
13712191 is a deficient number, since it is larger than the sum of its proper divisors (1).
13712191 is an equidigital number, since it uses as much as digits as its factorization.
13712191 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 378, while the sum is 25.
The square root of 13712191 is about 3702.9975695374. The cubic root of 13712191 is about 239.3512048600.
The spelling of 13712191 in words is "thirteen million, seven hundred twelve thousand, one hundred ninety-one".
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