| Base | Representation |
|---|---|
| bin | 10110100011000010… |
| … | …11101001101111000 |
| 3 | 1011020121221222122120 |
| 4 | 23101201131031320 |
| 5 | 144242404040120 |
| 6 | 5321103121240 |
| 7 | 605656006365 |
| oct | 132141351570 |
| 9 | 34217858576 |
| 10 | 12105143160 |
| 11 | 5152046250 |
| 12 | 2419ba3220 |
| 13 | 11abb89306 |
| 14 | 82b98b46c |
| 15 | 4acade140 |
| hex | 2d185d378 |
12105143160 has 128 divisors (see below), whose sum is σ = 39674050560. Its totient is φ = 2930342400.
The previous prime is 12105143117. The next prime is 12105143189. The reversal of 12105143160 is 6134150121.
It is a happy number.
12105143160 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a Harshad number since it is a multiple of its sum of digits (24).
It is a self number, because there is not a number n which added to its sum of digits gives 12105143160.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 961305 + ... + 973815.
It is an arithmetic number, because the mean of its divisors is an integer number (309953520).
Almost surely, 212105143160 is an apocalyptic number.
12105143160 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 12105143160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19837025280).
12105143160 is an abundant number, since it is smaller than the sum of its proper divisors (27568907400).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12105143160 is a wasteful number, since it uses less digits than its factorization.
12105143160 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 13269 (or 13265 counting only the distinct ones).
The product of its (nonzero) digits is 720, while the sum is 24.
Adding to 12105143160 its reverse (6134150121), we get a palindrome (18239293281).
The spelling of 12105143160 in words is "twelve billion, one hundred five million, one hundred forty-three thousand, one hundred sixty".
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