Base | Representation |
---|---|
bin | 110010011000… |
… | …010101010111 |
3 | 220211222102101 |
4 | 302120111113 |
5 | 11340104441 |
6 | 1151022531 |
7 | 220153666 |
oct | 62302527 |
9 | 26758371 |
10 | 13206871 |
11 | 7500577 |
12 | 450aa47 |
13 | 2975422 |
14 | 1a7addd |
15 | 125d231 |
hex | c98557 |
13206871 has 2 divisors, whose sum is σ = 13206872. Its totient is φ = 13206870.
The previous prime is 13206847. The next prime is 13206883. The reversal of 13206871 is 17860231.
13206871 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 13206871 - 211 = 13204823 is a prime.
It is a super-2 number, since 2×132068712 = 348842883221282, which contains 22 as substring.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (13206821) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6603435 + 6603436.
It is an arithmetic number, because the mean of its divisors is an integer number (6603436).
Almost surely, 213206871 is an apocalyptic number.
13206871 is a deficient number, since it is larger than the sum of its proper divisors (1).
13206871 is an equidigital number, since it uses as much as digits as its factorization.
13206871 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 2016, while the sum is 28.
The square root of 13206871 is about 3634.1258921507. The cubic root of 13206871 is about 236.3741491693.
The spelling of 13206871 in words is "thirteen million, two hundred six thousand, eight hundred seventy-one".
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