Base | Representation |
---|---|
bin | 10010110000010100… |
… | …00011110111100001 |
3 | 221222201112111220022 |
4 | 21120022003313201 |
5 | 131110123420011 |
6 | 4343044523225 |
7 | 504342543401 |
oct | 113012036741 |
9 | 27881474808 |
10 | 10068966881 |
11 | 42a773a936 |
12 | 1b500b0515 |
13 | c4608698c |
14 | 6b7396801 |
15 | 3dde828db |
hex | 258283de1 |
10068966881 has 2 divisors, whose sum is σ = 10068966882. Its totient is φ = 10068966880.
The previous prime is 10068966877. The next prime is 10068966893. The reversal of 10068966881 is 18866986001.
It is a happy number.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 6371232400 + 3697734481 = 79820^2 + 60809^2 .
It is an emirp because it is prime and its reverse (18866986001) is a distict prime. It is also a bemirp because it and its reverse can be mirrored producing other two distinct primes, 18899689001 and 10098699881.
It is a cyclic number.
It is not a de Polignac number, because 10068966881 - 22 = 10068966877 is a prime.
It is a super-2 number, since 2×100689668812 (a number of 21 digits) contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (10068969881) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5034483440 + 5034483441.
It is an arithmetic number, because the mean of its divisors is an integer number (5034483441).
Almost surely, 210068966881 is an apocalyptic number.
It is an amenable number.
10068966881 is a deficient number, since it is larger than the sum of its proper divisors (1).
10068966881 is an equidigital number, since it uses as much as digits as its factorization.
10068966881 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 995328, while the sum is 53.
The spelling of 10068966881 in words is "ten billion, sixty-eight million, nine hundred sixty-six thousand, eight hundred eighty-one".
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