Base | Representation |
---|---|
bin | 1100110011000110… |
… | …11011100010001001 |
3 | 122201212022120002201 |
4 | 12121203123202021 |
5 | 103033004403121 |
6 | 3053453000201 |
7 | 332162655103 |
oct | 63143334211 |
9 | 18655276081 |
10 | 6871169161 |
11 | 2a066610aa |
12 | 13b9183061 |
13 | 85670968c |
14 | 4927c2573 |
15 | 2a336be91 |
hex | 1998db889 |
6871169161 has 2 divisors, whose sum is σ = 6871169162. Its totient is φ = 6871169160.
The previous prime is 6871169159. The next prime is 6871169167. The reversal of 6871169161 is 1619611786.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 5239009161 + 1632160000 = 72381^2 + 40400^2 .
It is a cyclic number.
It is not a de Polignac number, because 6871169161 - 21 = 6871169159 is a prime.
Together with 6871169159, it forms a pair of twin primes.
It is not a weakly prime, because it can be changed into another prime (6871169167) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3435584580 + 3435584581.
It is an arithmetic number, because the mean of its divisors is an integer number (3435584581).
Almost surely, 26871169161 is an apocalyptic number.
It is an amenable number.
6871169161 is a deficient number, since it is larger than the sum of its proper divisors (1).
6871169161 is an equidigital number, since it uses as much as digits as its factorization.
6871169161 is an evil number, because the sum of its binary digits is even.
The product of its digits is 108864, while the sum is 46.
The square root of 6871169161 is about 82892.5157116130. The cubic root of 6871169161 is about 1901.1229890387.
The spelling of 6871169161 in words is "six billion, eight hundred seventy-one million, one hundred sixty-nine thousand, one hundred sixty-one".
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