Base | Representation |
---|---|
bin | 111111011011101111… |
… | …000101110101100111 |
3 | 20111210202222120101200 |
4 | 333123233011311213 |
5 | 2103442413030143 |
6 | 51142332253543 |
7 | 4630566331563 |
oct | 773357056547 |
9 | 214722876350 |
10 | 68111064423 |
11 | 26981a13896 |
12 | 1124a3112b3 |
13 | 6565cb8cac |
14 | 3421bcc6a3 |
15 | 1b8988b1d3 |
hex | fdbbc5d67 |
68111064423 has 24 divisors (see below), whose sum is σ = 101328050928. Its totient is φ = 44054917632.
The previous prime is 68111064403. The next prime is 68111064481. The reversal of 68111064423 is 32446011186.
68111064423 is a `hidden beast` number, since 6 + 8 + 1 + 1 + 1 + 0 + 644 + 2 + 3 = 666.
It is not a de Polignac number, because 68111064423 - 210 = 68111063399 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68111064403) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 172165 + ... + 407262.
It is an arithmetic number, because the mean of its divisors is an integer number (4222002122).
Almost surely, 268111064423 is an apocalyptic number.
68111064423 is a deficient number, since it is larger than the sum of its proper divisors (33216986505).
68111064423 is a wasteful number, since it uses less digits than its factorization.
68111064423 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 579823 (or 579820 counting only the distinct ones).
The product of its (nonzero) digits is 27648, while the sum is 36.
The spelling of 68111064423 in words is "sixty-eight billion, one hundred eleven million, sixty-four thousand, four hundred twenty-three".
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