Base | Representation |
---|---|
bin | 111111010110001100… |
… | …100100000000110001 |
3 | 20111120022002212002002 |
4 | 333112030210000301 |
5 | 2103300120030042 |
6 | 51125212303345 |
7 | 4625360352650 |
oct | 772614440061 |
9 | 214508085062 |
10 | 68018126897 |
11 | 26934506516 |
12 | 11223171b55 |
13 | 654c978c86 |
14 | 3413719197 |
15 | 1b8162e132 |
hex | fd6324031 |
68018126897 has 8 divisors (see below), whose sum is σ = 77739263616. Its totient is φ = 58298055552.
The previous prime is 68018126893. The next prime is 68018126959. The reversal of 68018126897 is 79862181086.
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 68018126897 - 22 = 68018126893 is a prime.
It is not an unprimeable number, because it can be changed into a prime (68018126893) 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, 124493 + ... + 389274.
It is an arithmetic number, because the mean of its divisors is an integer number (9717407952).
Almost surely, 268018126897 is an apocalyptic number.
It is an amenable number.
68018126897 is a deficient number, since it is larger than the sum of its proper divisors (9721136719).
68018126897 is a wasteful number, since it uses less digits than its factorization.
68018126897 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 532687.
The product of its (nonzero) digits is 2322432, while the sum is 56.
The spelling of 68018126897 in words is "sixty-eight billion, eighteen million, one hundred twenty-six thousand, eight hundred ninety-seven".
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