Base | Representation |
---|---|
bin | 101101110011… |
… | …010000101101 |
3 | 211120222202011 |
4 | 231303100231 |
5 | 11033201240 |
6 | 1105201221 |
7 | 204024133 |
oct | 55632055 |
9 | 24528664 |
10 | 12006445 |
11 | 6860690 |
12 | 4030211 |
13 | 2644c09 |
14 | 1847753 |
15 | 10c26ea |
hex | b7342d |
12006445 has 16 divisors (see below), whose sum is σ = 15785280. Its totient is φ = 8694400.
The previous prime is 12006443. The next prime is 12006473. The reversal of 12006445 is 54460021.
It is not a de Polignac number, because 12006445 - 21 = 12006443 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12006443) 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 15 ways as a sum of consecutive naturals, for example, 22785 + ... + 23305.
It is an arithmetic number, because the mean of its divisors is an integer number (986580).
Almost surely, 212006445 is an apocalyptic number.
It is an amenable number.
12006445 is a deficient number, since it is larger than the sum of its proper divisors (3778835).
12006445 is a wasteful number, since it uses less digits than its factorization.
12006445 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 956.
The product of its (nonzero) digits is 960, while the sum is 22.
The square root of 12006445 is about 3465.0317458863. The cubic root of 12006445 is about 228.9838283044.
Adding to 12006445 its reverse (54460021), we get a palindrome (66466466).
The spelling of 12006445 in words is "twelve million, six thousand, four hundred forty-five".
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