Base | Representation |
---|---|
bin | 111111110000111011… |
… | …111111111111011110 |
3 | 20112201120022021120002 |
4 | 333300323333333132 |
5 | 2110204443114021 |
6 | 51241520254302 |
7 | 4642445641004 |
oct | 776073777736 |
9 | 215646267502 |
10 | 68466769886 |
11 | 27044785649 |
12 | 11329471392 |
13 | 65c18bc0b8 |
14 | 3457142a74 |
15 | 1baac0050b |
hex | ff0efffde |
68466769886 has 48 divisors (see below), whose sum is σ = 109279545984. Its totient is φ = 32106733296.
The previous prime is 68466769873. The next prime is 68466769937. The reversal of 68466769886 is 68896766486.
It is a Curzon number.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (29) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 106479881 + ... + 106480523.
It is an arithmetic number, because the mean of its divisors is an integer number (2276657208).
Almost surely, 268466769886 is an apocalyptic number.
68466769886 is a deficient number, since it is larger than the sum of its proper divisors (40812776098).
68466769886 is a wasteful number, since it uses less digits than its factorization.
68466769886 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1085 (or 918 counting only the distinct ones).
The product of its digits is 1003290624, while the sum is 74.
The spelling of 68466769886 in words is "sixty-eight billion, four hundred sixty-six million, seven hundred sixty-nine thousand, eight hundred eighty-six".
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