Base | Representation |
---|---|
bin | 110101011111… |
… | …0101101001011 |
3 | 1221202210021122 |
4 | 1222332231023 |
5 | 24134402412 |
6 | 2441025455 |
7 | 460241150 |
oct | 152765513 |
9 | 57683248 |
10 | 28044107 |
11 | 14914a53 |
12 | 948528b |
13 | 5a6b960 |
14 | 3a20227 |
15 | 26de572 |
hex | 1abeb4b |
28044107 has 16 divisors (see below), whose sum is σ = 36019200. Its totient is φ = 21222432.
The previous prime is 28044103. The next prime is 28044139. The reversal of 28044107 is 70144082.
It is not a de Polignac number, because 28044107 - 22 = 28044103 is a prime.
It is not an unprimeable number, because it can be changed into a prime (28044103) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4607 + ... + 8792.
It is an arithmetic number, because the mean of its divisors is an integer number (2251200).
Almost surely, 228044107 is an apocalyptic number.
28044107 is a deficient number, since it is larger than the sum of its proper divisors (7975093).
28044107 is a wasteful number, since it uses less digits than its factorization.
28044107 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 13442.
The product of its (nonzero) digits is 1792, while the sum is 26.
The square root of 28044107 is about 5295.6687018733. The cubic root of 28044107 is about 303.8182597641.
Adding to 28044107 its reverse (70144082), we get a palindrome (98188189).
The spelling of 28044107 in words is "twenty-eight million, forty-four thousand, one hundred seven".
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