Base | Representation |
---|---|
bin | 101111110010110111101… |
… | …0101111110110001001001 |
3 | 212020222102001111121222212 |
4 | 1133211233111332301021 |
5 | 1330111022443404211 |
6 | 21545410522154505 |
7 | 1245404540321525 |
oct | 137455725766111 |
9 | 25228361447885 |
10 | 6568873028681 |
11 | 2102930635767 |
12 | 8a1112352a35 |
13 | 3885992bcc82 |
14 | 189d140a8d85 |
15 | b5d112b938b |
hex | 5f96f57ec49 |
6568873028681 has 8 divisors (see below), whose sum is σ = 6588853325664. Its totient is φ = 6548893544160.
The previous prime is 6568873028633. The next prime is 6568873028801. The reversal of 6568873028681 is 1868203788656.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 6568873028681 - 210 = 6568873027657 is a prime.
It is a super-3 number, since 3×65688730286813 (a number of 39 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (6568873028281) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18645146 + ... + 18994188.
It is an arithmetic number, because the mean of its divisors is an integer number (823606665708).
Almost surely, 26568873028681 is an apocalyptic number.
It is an amenable number.
6568873028681 is a deficient number, since it is larger than the sum of its proper divisors (19980296983).
6568873028681 is a wasteful number, since it uses less digits than its factorization.
6568873028681 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 406231.
The product of its (nonzero) digits is 185794560, while the sum is 68.
The spelling of 6568873028681 in words is "six trillion, five hundred sixty-eight billion, eight hundred seventy-three million, twenty-eight thousand, six hundred eighty-one".
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