Base | Representation |
---|---|
bin | 1001101010101… |
… | …01000101110011 |
3 | 12122120202000222 |
4 | 10311111011303 |
5 | 131224321013 |
6 | 12014003255 |
7 | 2003146511 |
oct | 465250563 |
9 | 178522028 |
10 | 81088883 |
11 | 41855307 |
12 | 231a652b |
13 | 13a51bb5 |
14 | aaab4b1 |
15 | 71bb508 |
hex | 4d55173 |
81088883 has 2 divisors, whose sum is σ = 81088884. Its totient is φ = 81088882.
The previous prime is 81088877. The next prime is 81088907. The reversal of 81088883 is 38888018.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 81088883 - 210 = 81087859 is a prime.
It is a Chen prime.
It is not a weakly prime, because it can be changed into another prime (81088873) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40544441 + 40544442.
It is an arithmetic number, because the mean of its divisors is an integer number (40544442).
Almost surely, 281088883 is an apocalyptic number.
81088883 is a deficient number, since it is larger than the sum of its proper divisors (1).
81088883 is an equidigital number, since it uses as much as digits as its factorization.
81088883 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 98304, while the sum is 44.
The square root of 81088883 is about 9004.9365905596. The cubic root of 81088883 is about 432.8330743120.
The spelling of 81088883 in words is "eighty-one million, eighty-eight thousand, eight hundred eighty-three".
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