Base | Representation |
---|---|
bin | 111111011010001011… |
… | …101010100000010000 |
3 | 20111201221221101000101 |
4 | 333122023222200100 |
5 | 2103414230001313 |
6 | 51140001502144 |
7 | 4630131644611 |
oct | 773213524020 |
9 | 214657841011 |
10 | 68085000208 |
11 | 26969231415 |
12 | 11241641954 |
13 | 6560791594 |
14 | 341c565c08 |
15 | 1b8743d5dd |
hex | fda2ea810 |
68085000208 has 20 divisors (see below), whose sum is σ = 131920427088. Its totient is φ = 34041019040.
The previous prime is 68085000169. The next prime is 68085000227. The reversal of 68085000208 is 80200058086.
It is an unprimeable number.
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 in 3 ways as a sum of consecutive naturals, for example, 351135 + ... + 509377.
Almost surely, 268085000208 is an apocalyptic number.
68085000208 is the 139474-th centered heptagonal number.
It is an amenable number.
68085000208 is a deficient number, since it is larger than the sum of its proper divisors (63835426880).
68085000208 is a wasteful number, since it uses less digits than its factorization.
68085000208 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 185142 (or 185136 counting only the distinct ones).
The product of its (nonzero) digits is 30720, while the sum is 37.
The spelling of 68085000208 in words is "sixty-eight billion, eighty-five million, two hundred eight", and thus it is an aban number.
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