Base | Representation |
---|---|
bin | 101111011110… |
… | …001000000000 |
3 | 212102020011211 |
4 | 233132020000 |
5 | 11141203120 |
6 | 1122415504 |
7 | 210526231 |
oct | 57361000 |
9 | 25366154 |
10 | 12444160 |
11 | 702a533 |
12 | 4201594 |
13 | 2769211 |
14 | 191d088 |
15 | 115c25a |
hex | bde200 |
12444160 has 40 divisors (see below), whose sum is σ = 29842956. Its totient is φ = 4976640.
The previous prime is 12444139. The next prime is 12444163. The reversal of 12444160 is 6144421.
It can be written as a sum of positive squares in 2 ways, for example, as 12054784 + 389376 = 3472^2 + 624^2 .
It is a tau number, because it is divible by the number of its divisors (40).
It is not an unprimeable number, because it can be changed into a prime (12444163) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130 + ... + 4990.
Almost surely, 212444160 is an apocalyptic number.
12444160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 12444160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14921478).
12444160 is an abundant number, since it is smaller than the sum of its proper divisors (17398796).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12444160 is an frugal number, since it uses more digits than its factorization.
12444160 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4884 (or 4868 counting only the distinct ones).
The product of its (nonzero) digits is 768, while the sum is 22.
The square root of 12444160 is about 3527.6280983120. The cubic root of 12444160 is about 231.7333440448.
Adding to 12444160 its reverse (6144421), we get a palindrome (18588581).
The spelling of 12444160 in words is "twelve million, four hundred forty-four thousand, one hundred sixty".
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