Base | Representation |
---|---|
bin | 11111010100000111000001… |
… | …11000100010011010100110 |
3 | 100000211000110210020022122010 |
4 | 33222003200320202122212 |
5 | 33011203142240410021 |
6 | 402242055202215050 |
7 | 20335010025414651 |
oct | 1752034070423246 |
9 | 300730423208563 |
10 | 68860688606886 |
11 | 1aa397215846a0 |
12 | 78817b5354486 |
13 | 2c566c5729897 |
14 | 1300c37440898 |
15 | 7e6357c2e976 |
hex | 3ea0e0e226a6 |
68860688606886 has 128 divisors (see below), whose sum is σ = 159788505526272. Its totient is φ = 19585193472000.
The previous prime is 68860688606863. The next prime is 68860688606891.
68860688606886 is nontrivially palindromic in base 10.
68860688606886 is a modest number, since divided by 688606886 gives 6886 as remainder.
It is a junction number, because it is equal to n+sod(n) for n = 68860688606799 and 68860688606808.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 22241646 + ... + 25147806.
It is an arithmetic number, because the mean of its divisors is an integer number (1248347699424).
Almost surely, 268860688606886 is an apocalyptic number.
68860688606886 is a gapful number since it is divisible by the number (66) formed by its first and last digit.
It is a practical number, because each smaller number is the sum of distinct divisors of 68860688606886, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79894252763136).
68860688606886 is an abundant number, since it is smaller than the sum of its proper divisors (90927816919386).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68860688606886 is a wasteful number, since it uses less digits than its factorization.
68860688606886 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2906558.
The product of its (nonzero) digits is 12230590464, while the sum is 84.
The spelling of 68860688606886 in words is "sixty-eight trillion, eight hundred sixty billion, six hundred eighty-eight million, six hundred six thousand, eight hundred eighty-six".
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