Base | Representation |
---|---|
bin | 101111011110… |
… | …000101110010 |
3 | 212102012222120 |
4 | 233132011302 |
5 | 11141202033 |
6 | 1122415110 |
7 | 210525636 |
oct | 57360562 |
9 | 25365876 |
10 | 12444018 |
11 | 702a414 |
12 | 4201496 |
13 | 2769132 |
14 | 191cdc6 |
15 | 115c1b3 |
hex | bde172 |
12444018 has 16 divisors (see below), whose sum is σ = 25229856. Its totient is φ = 4091040.
The previous prime is 12444011. The next prime is 12444023. The reversal of 12444018 is 81044421.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (12444011) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13768 + ... + 14643.
It is an arithmetic number, because the mean of its divisors is an integer number (1576866).
Almost surely, 212444018 is an apocalyptic number.
12444018 is an abundant number, since it is smaller than the sum of its proper divisors (12785838).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12444018 is a wasteful number, since it uses less digits than its factorization.
12444018 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 28489.
The product of its (nonzero) digits is 1024, while the sum is 24.
The square root of 12444018 is about 3527.6079714163. The cubic root of 12444018 is about 231.7324626070.
Adding to 12444018 its reverse (81044421), we get a palindrome (93488439).
The spelling of 12444018 in words is "twelve million, four hundred forty-four thousand, eighteen".
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