Base | Representation |
---|---|
bin | 111111111010001001… |
… | …111010100101001110 |
3 | 20120010100021221121012 |
4 | 333322021322211032 |
5 | 2111014040201221 |
6 | 51305123005222 |
7 | 4646334245441 |
oct | 777211724516 |
9 | 216110257535 |
10 | 68621412686 |
11 | 27113aa9012 |
12 | 11371209812 |
13 | 6617955308 |
14 | 346d8b9658 |
15 | 1bb959a65b |
hex | ffa27a94e |
68621412686 has 8 divisors (see below), whose sum is σ = 107407428624. Its totient is φ = 32818936480.
The previous prime is 68621412677. The next prime is 68621412737.
68621412686 is nontrivially palindromic in base 10.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 745884875 + ... + 745884966.
It is an arithmetic number, because the mean of its divisors is an integer number (13425928578).
Almost surely, 268621412686 is an apocalyptic number.
68621412686 is a deficient number, since it is larger than the sum of its proper divisors (38786015938).
68621412686 is a wasteful number, since it uses less digits than its factorization.
68621412686 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1491769866.
The product of its digits is 1327104, while the sum is 50.
The spelling of 68621412686 in words is "sixty-eight billion, six hundred twenty-one million, four hundred twelve thousand, six hundred eighty-six".
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