Base | Representation |
---|---|
bin | 10000101111010110… |
… | …01000100101110101 |
3 | 212012022211220011001 |
4 | 20113223020211311 |
5 | 121401200233231 |
6 | 4043441043301 |
7 | 435465146014 |
oct | 102753104565 |
9 | 25168756131 |
10 | 8987117941 |
11 | 38a1aa27aa |
12 | 18a9926531 |
13 | b02bbc989 |
14 | 613820a7b |
15 | 378ed4b61 |
hex | 217ac8975 |
8987117941 has 2 divisors, whose sum is σ = 8987117942. Its totient is φ = 8987117940.
The previous prime is 8987117929. The next prime is 8987117989. The reversal of 8987117941 is 1497117898.
8987117941 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 6101172100 + 2885945841 = 78110^2 + 53721^2 .
It is a cyclic number.
It is not a de Polignac number, because 8987117941 - 233 = 397183349 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (8981117941) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4493558970 + 4493558971.
It is an arithmetic number, because the mean of its divisors is an integer number (4493558971).
Almost surely, 28987117941 is an apocalyptic number.
It is an amenable number.
8987117941 is a deficient number, since it is larger than the sum of its proper divisors (1).
8987117941 is an equidigital number, since it uses as much as digits as its factorization.
8987117941 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 1016064, while the sum is 55.
The square root of 8987117941 is about 94800.4110803323. The cubic root of 8987117941 is about 2079.0909135214.
The spelling of 8987117941 in words is "eight billion, nine hundred eighty-seven million, one hundred seventeen thousand, nine hundred forty-one".
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