Base | Representation |
---|---|
bin | 110010001110… |
… | …110110011111 |
3 | 220210000010212 |
4 | 302032312133 |
5 | 11332334111 |
6 | 1150123035 |
7 | 216632522 |
oct | 62166637 |
9 | 26700125 |
10 | 13168031 |
11 | 7484378 |
12 | 44b047b |
13 | 2960846 |
14 | 1a6abb9 |
15 | 125198b |
hex | c8ed9f |
13168031 has 2 divisors, whose sum is σ = 13168032. Its totient is φ = 13168030.
The previous prime is 13168027. The next prime is 13168069. The reversal of 13168031 is 13086131.
It is a weak prime.
It is an emirp because it is prime and its reverse (13086131) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 13168031 - 22 = 13168027 is a prime.
It is a super-2 number, since 2×131680312 = 346794080833922, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 13167988 and 13168006.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (13168021) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6584015 + 6584016.
It is an arithmetic number, because the mean of its divisors is an integer number (6584016).
Almost surely, 213168031 is an apocalyptic number.
13168031 is a deficient number, since it is larger than the sum of its proper divisors (1).
13168031 is an equidigital number, since it uses as much as digits as its factorization.
13168031 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 432, while the sum is 23.
The square root of 13168031 is about 3628.7781690260. The cubic root of 13168031 is about 236.1422045859.
The spelling of 13168031 in words is "thirteen million, one hundred sixty-eight thousand, thirty-one".
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