Base | Representation |
---|---|
bin | 110010010010… |
… | …000001100011 |
3 | 220210122222012 |
4 | 302102001203 |
5 | 11333243102 |
6 | 1150303135 |
7 | 220015436 |
oct | 62220143 |
9 | 26718865 |
10 | 13181027 |
11 | 7493112 |
12 | 44b7aab |
13 | 2966732 |
14 | 1a7181d |
15 | 1255752 |
hex | c92063 |
13181027 has 2 divisors, whose sum is σ = 13181028. Its totient is φ = 13181026.
The previous prime is 13180997. The next prime is 13181029. The reversal of 13181027 is 72018131.
It is a happy number.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 13181027 - 212 = 13176931 is a prime.
Together with 13181029, it forms a pair of twin primes.
It is a Chen prime.
It is a junction number, because it is equal to n+sod(n) for n = 13180993 and 13181011.
It is not a weakly prime, because it can be changed into another prime (13181029) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6590513 + 6590514.
It is an arithmetic number, because the mean of its divisors is an integer number (6590514).
Almost surely, 213181027 is an apocalyptic number.
13181027 is a deficient number, since it is larger than the sum of its proper divisors (1).
13181027 is an equidigital number, since it uses as much as digits as its factorization.
13181027 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 336, while the sum is 23.
The square root of 13181027 is about 3630.5684127971. The cubic root of 13181027 is about 236.2198647676.
Adding to 13181027 its reverse (72018131), we get a palindrome (85199158).
The spelling of 13181027 in words is "thirteen million, one hundred eighty-one thousand, twenty-seven".
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