Base | Representation |
---|---|
bin | 11010010000010001… |
… | …101100010101010000 |
3 | 2200202122010201020012 |
4 | 122100101230111100 |
5 | 430213213022122 |
6 | 20541145134052 |
7 | 2015404054100 |
oct | 322021542520 |
9 | 80678121205 |
10 | 28190360912 |
11 | 10a567a643a |
12 | 5568a8a328 |
13 | 28734ab83c |
14 | 1515d83200 |
15 | aeed197e2 |
hex | 69046c550 |
28190360912 has 120 divisors (see below), whose sum is σ = 64134466560. Its totient is φ = 11968508160.
The previous prime is 28190360873. The next prime is 28190361029. The reversal of 28190360912 is 21906309182.
It is a self number, because there is not a number n which added to its sum of digits gives 28190360912.
It is a congruent number.
It is an unprimeable number.
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 23 ways as a sum of consecutive naturals, for example, 58852289 + ... + 58852767.
It is an arithmetic number, because the mean of its divisors is an integer number (534453888).
Almost surely, 228190360912 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 28190360912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32067233280).
28190360912 is an abundant number, since it is smaller than the sum of its proper divisors (35944105648).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28190360912 is a wasteful number, since it uses less digits than its factorization.
28190360912 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1049 (or 1036 counting only the distinct ones).
The product of its (nonzero) digits is 46656, while the sum is 41.
The spelling of 28190360912 in words is "twenty-eight billion, one hundred ninety million, three hundred sixty thousand, nine hundred twelve".
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