Base | Representation |
---|---|
bin | 100000000000100011… |
… | …0101101001000111001 |
3 | 20120102110200210101101 |
4 | 1000001012231020321 |
5 | 2111233412333310 |
6 | 51324450051401 |
7 | 4652251313326 |
oct | 1000106551071 |
9 | 216373623341 |
10 | 68738011705 |
11 | 271738a7640 |
12 | 113a4279b61 |
13 | 6635b5b20c |
14 | 348118bb4d |
15 | 1bc492d43a |
hex | 10011ad239 |
68738011705 has 8 divisors (see below), whose sum is σ = 89984306304. Its totient is φ = 49991281200.
The previous prime is 68738011687. The next prime is 68738011709. The reversal of 68738011705 is 50711083786.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 68738011705 - 29 = 68738011193 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (68738011709) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 624890961 + ... + 624891070.
It is an arithmetic number, because the mean of its divisors is an integer number (11248038288).
Almost surely, 268738011705 is an apocalyptic number.
It is an amenable number.
68738011705 is a deficient number, since it is larger than the sum of its proper divisors (21246294599).
68738011705 is a wasteful number, since it uses less digits than its factorization.
68738011705 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1249782047.
The product of its (nonzero) digits is 282240, while the sum is 46.
The spelling of 68738011705 in words is "sixty-eight billion, seven hundred thirty-eight million, eleven thousand, seven hundred five".
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