Base | Representation |
---|---|
bin | 11011001100000… |
… | …11110111010001 |
3 | 120220011201110100 |
4 | 31212003313101 |
5 | 431342043410 |
6 | 34344323013 |
7 | 5436441330 |
oct | 1546036721 |
9 | 526151410 |
10 | 228081105 |
11 | 10782278a |
12 | 64473469 |
13 | 38339a45 |
14 | 22411d17 |
15 | 150548c0 |
hex | d983dd1 |
228081105 has 48 divisors (see below), whose sum is σ = 466412544. Its totient is φ = 100897920.
The previous prime is 228081097. The next prime is 228081151. The reversal of 228081105 is 501180822.
It is not a de Polignac number, because 228081105 - 23 = 228081097 is a prime.
It is an unprimeable number.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1914 + ... + 21443.
It is an arithmetic number, because the mean of its divisors is an integer number (9716928).
Almost surely, 2228081105 is an apocalyptic number.
It is an amenable number.
228081105 is an abundant number, since it is smaller than the sum of its proper divisors (238331439).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
228081105 is a wasteful number, since it uses less digits than its factorization.
228081105 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 23406 (or 23403 counting only the distinct ones).
The product of its (nonzero) digits is 1280, while the sum is 27.
The square root of 228081105 is about 15102.3542866667. The cubic root of 228081105 is about 610.9839044014.
The spelling of 228081105 in words is "two hundred twenty-eight million, eighty-one thousand, one hundred five".
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