Base | Representation |
---|---|
bin | 110110100011… |
… | …1101001001110 |
3 | 1222211021200200 |
4 | 1231013221032 |
5 | 24310330011 |
6 | 2501034330 |
7 | 465065343 |
oct | 155075116 |
9 | 58737620 |
10 | 28605006 |
11 | 15168401 |
12 | 96b59a6 |
13 | 5c07051 |
14 | 3b287ca |
15 | 27a0856 |
hex | 1b47a4e |
28605006 has 24 divisors (see below), whose sum is σ = 62093304. Its totient is φ = 9517200.
The previous prime is 28604993. The next prime is 28605007. The reversal of 28605006 is 60050682.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (28605007) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11485 + ... + 13751.
It is an arithmetic number, because the mean of its divisors is an integer number (2587221).
Almost surely, 228605006 is an apocalyptic number.
28605006 is an abundant number, since it is smaller than the sum of its proper divisors (33488298).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28605006 is a wasteful number, since it uses less digits than its factorization.
28605006 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2976 (or 2973 counting only the distinct ones).
The product of its (nonzero) digits is 2880, while the sum is 27.
The square root of 28605006 is about 5348.3647968328. The cubic root of 28605006 is about 305.8304199439.
Adding to 28605006 its reverse (60050682), we get a palindrome (88655688).
The spelling of 28605006 in words is "twenty-eight million, six hundred five thousand, six".
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