Base | Representation |
---|---|
bin | 101101110110… |
… | …000111111000 |
3 | 211121120211100 |
4 | 231312013320 |
5 | 11034040133 |
6 | 1105331400 |
7 | 204103251 |
oct | 55660770 |
9 | 24546740 |
10 | 12018168 |
11 | 6869478 |
12 | 4036b60 |
13 | 264a356 |
14 | 184bb28 |
15 | 10c5e13 |
hex | b761f8 |
12018168 has 24 divisors (see below), whose sum is σ = 32549400. Its totient is φ = 4006032.
The previous prime is 12018163. The next prime is 12018169. The reversal of 12018168 is 86181021.
It is a tau number, because it is divible by the number of its divisors (24).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12018163) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 83388 + ... + 83531.
It is an arithmetic number, because the mean of its divisors is an integer number (1356225).
Almost surely, 212018168 is an apocalyptic number.
12018168 is a gapful number since it is divisible by the number (18) formed by its first and last digit.
It is an amenable number.
12018168 is an abundant number, since it is smaller than the sum of its proper divisors (20531232).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12018168 is a wasteful number, since it uses less digits than its factorization.
12018168 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 166931 (or 166924 counting only the distinct ones).
The product of its (nonzero) digits is 768, while the sum is 27.
The square root of 12018168 is about 3466.7229482611. The cubic root of 12018168 is about 229.0583300748.
Adding to 12018168 its reverse (86181021), we get a palindrome (98199189).
The spelling of 12018168 in words is "twelve million, eighteen thousand, one hundred sixty-eight".
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