Base | Representation |
---|---|
bin | 111111111101101000… |
… | …110111110110101110 |
3 | 20120021102021100201211 |
4 | 333331220313312232 |
5 | 2111124021002010 |
6 | 51315011425034 |
7 | 4650644113624 |
oct | 777550676656 |
9 | 216242240654 |
10 | 68679859630 |
11 | 27143a99078 |
12 | 113888b517a |
13 | 6626aaa3c5 |
14 | 3477571514 |
15 | 1bbe79308a |
hex | ffda37dae |
68679859630 has 32 divisors (see below), whose sum is σ = 125233726464. Its totient is φ = 27115693056.
The previous prime is 68679859627. The next prime is 68679859649. The reversal of 68679859630 is 3695897686.
It is a super-3 number, since 3×686798596303 (a number of 33 digits) contains 333 as substring.
It is a Smith number, since the sum of its digits (67) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 266899 + ... + 456721.
It is an arithmetic number, because the mean of its divisors is an integer number (3913553952).
Almost surely, 268679859630 is an apocalyptic number.
68679859630 is a deficient number, since it is larger than the sum of its proper divisors (56553866834).
68679859630 is a wasteful number, since it uses less digits than its factorization.
68679859630 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 190300.
The product of its (nonzero) digits is 117573120, while the sum is 67.
The spelling of 68679859630 in words is "sixty-eight billion, six hundred seventy-nine million, eight hundred fifty-nine thousand, six hundred thirty".
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