Base | Representation |
---|---|
bin | 1000001000111… |
… | …11010110001110 |
3 | 11202111021120010 |
4 | 10010133112032 |
5 | 114440121323 |
6 | 10435334050 |
7 | 1456264035 |
oct | 404372616 |
9 | 152437503 |
10 | 68285838 |
11 | 35600185 |
12 | 1aa51326 |
13 | 111bb52a |
14 | 90d771c |
15 | 5edcc93 |
hex | 411f58e |
68285838 has 32 divisors (see below), whose sum is σ = 145061280. Its totient is φ = 21355520.
The previous prime is 68285837. The next prime is 68285857. The reversal of 68285838 is 83858286.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68285837) 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 15 ways as a sum of consecutive naturals, for example, 38818 + ... + 40538.
It is an arithmetic number, because the mean of its divisors is an integer number (4533165).
Almost surely, 268285838 is an apocalyptic number.
68285838 is an abundant number, since it is smaller than the sum of its proper divisors (76775442).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68285838 is a wasteful number, since it uses less digits than its factorization.
68285838 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2132.
The product of its digits is 737280, while the sum is 48.
The square root of 68285838 is about 8263.5245506987. The cubic root of 68285838 is about 408.7366186269.
The spelling of 68285838 in words is "sixty-eight million, two hundred eighty-five thousand, eight hundred thirty-eight".
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