Base | Representation |
---|---|
bin | 111111111101100001… |
… | …010011111110110110 |
3 | 20120021021112200000111 |
4 | 333331201103332312 |
5 | 2111123014041221 |
6 | 51314501133234 |
7 | 4650621220435 |
oct | 777541237666 |
9 | 216237480014 |
10 | 68677877686 |
11 | 27142965000 |
12 | 113880ba21a |
13 | 6626565262 |
14 | 34771b711c |
15 | 1bbe500be1 |
hex | ffd853fb6 |
68677877686 has 64 divisors (see below), whose sum is σ = 125194346496. Its totient is φ = 28103053440.
The previous prime is 68677877591. The next prime is 68677877693.
68677877686 is nontrivially palindromic in base 10.
It is a super-3 number, since 3×686778776863 (a number of 33 digits) contains 333 as substring.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1007851 + ... + 1073833.
It is an arithmetic number, because the mean of its divisors is an integer number (1956161664).
Almost surely, 268677877686 is an apocalyptic number.
68677877686 is a deficient number, since it is larger than the sum of its proper divisors (56516468810).
68677877686 is a wasteful number, since it uses less digits than its factorization.
68677877686 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 66058 (or 66036 counting only the distinct ones).
The product of its digits is 1593188352, while the sum is 76.
The spelling of 68677877686 in words is "sixty-eight billion, six hundred seventy-seven million, eight hundred seventy-seven thousand, six hundred eighty-six".
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