Base | Representation |
---|---|
bin | 10001000101111… |
… | …001110010010001 |
3 | 201222120220212202 |
4 | 101011321302101 |
5 | 1041402310311 |
6 | 44242132545 |
7 | 10051264136 |
oct | 2105716221 |
9 | 658526782 |
10 | 286760081 |
11 | 137961103 |
12 | 80051155 |
13 | 4754362a |
14 | 2a12858d |
15 | 1a295e3b |
hex | 11179c91 |
286760081 has 2 divisors, whose sum is σ = 286760082. Its totient is φ = 286760080.
The previous prime is 286760057. The next prime is 286760083. The reversal of 286760081 is 180067682.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 226231681 + 60528400 = 15041^2 + 7780^2 .
It is a cyclic number.
It is not a de Polignac number, because 286760081 - 226 = 219651217 is a prime.
It is a super-2 number, since 2×2867600812 = 164462688110253122, which contains 22 as substring.
Together with 286760083, it forms a pair of twin primes.
It is a Chen prime.
It is not a weakly prime, because it can be changed into another prime (286760083) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 143380040 + 143380041.
It is an arithmetic number, because the mean of its divisors is an integer number (143380041).
Almost surely, 2286760081 is an apocalyptic number.
It is an amenable number.
286760081 is a deficient number, since it is larger than the sum of its proper divisors (1).
286760081 is an equidigital number, since it uses as much as digits as its factorization.
286760081 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 32256, while the sum is 38.
The square root of 286760081 is about 16933.9918802390. The cubic root of 286760081 is about 659.4363729581.
The spelling of 286760081 in words is "two hundred eighty-six million, seven hundred sixty thousand, eighty-one".
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