Base | Representation |
---|---|
bin | 1010010000100… |
… | …10111110110101 |
3 | 12222221100110202 |
4 | 11020102332311 |
5 | 134012422411 |
6 | 12312330245 |
7 | 2063335436 |
oct | 510227665 |
9 | 188840422 |
10 | 86060981 |
11 | 44640986 |
12 | 249a3985 |
13 | 14aa3076 |
14 | b60348d |
15 | 784e83b |
hex | 5212fb5 |
86060981 has 2 divisors, whose sum is σ = 86060982. Its totient is φ = 86060980.
The previous prime is 86060969. The next prime is 86060983. The reversal of 86060981 is 18906068.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 80102500 + 5958481 = 8950^2 + 2441^2 .
It is a cyclic number.
It is not a de Polignac number, because 86060981 - 210 = 86059957 is a prime.
It is a super-2 number, since 2×860609812 = 14812984901364722, which contains 22 as substring.
Together with 86060983, it forms a pair of twin primes.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (86060983) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43030490 + 43030491.
It is an arithmetic number, because the mean of its divisors is an integer number (43030491).
Almost surely, 286060981 is an apocalyptic number.
It is an amenable number.
86060981 is a deficient number, since it is larger than the sum of its proper divisors (1).
86060981 is an equidigital number, since it uses as much as digits as its factorization.
86060981 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 20736, while the sum is 38.
The square root of 86060981 is about 9276.9057880308. The cubic root of 86060981 is about 441.5048012211.
The spelling of 86060981 in words is "eighty-six million, sixty thousand, nine hundred eighty-one".
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