Base | Representation |
---|---|
bin | 110001111010… |
… | …101000100111 |
3 | 220121210112220 |
4 | 301322220213 |
5 | 11322211343 |
6 | 1144243423 |
7 | 216136224 |
oct | 61725047 |
9 | 26553486 |
10 | 13085223 |
11 | 7428138 |
12 | 4470573 |
13 | 2931c48 |
14 | 1a4894b |
15 | 1237183 |
hex | c7aa27 |
13085223 has 32 divisors (see below), whose sum is σ = 19408896. Its totient is φ = 7807488.
The previous prime is 13085209. The next prime is 13085227. The reversal of 13085223 is 32258031.
It is not a de Polignac number, because 13085223 - 26 = 13085159 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 13085193 and 13085202.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13085227) 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 31 ways as a sum of consecutive naturals, for example, 126990 + ... + 127092.
It is an arithmetic number, because the mean of its divisors is an integer number (606528).
Almost surely, 213085223 is an apocalyptic number.
13085223 is a deficient number, since it is larger than the sum of its proper divisors (6323673).
13085223 is a wasteful number, since it uses less digits than its factorization.
13085223 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 223.
The product of its (nonzero) digits is 1440, while the sum is 24.
The square root of 13085223 is about 3617.3502733354. The cubic root of 13085223 is about 235.6461649144.
The spelling of 13085223 in words is "thirteen million, eighty-five thousand, two hundred twenty-three".
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