| Base | Representation |
|---|---|
| bin | 1000110000001011100 |
| 3 | 112120102200 |
| 4 | 1012001130 |
| 5 | 33134222 |
| 6 | 10051500 |
| 7 | 2303121 |
| oct | 1060134 |
| 9 | 476380 |
| 10 | 286812 |
| 11 | 186539 |
| 12 | 119b90 |
| 13 | a0716 |
| 14 | 76748 |
| 15 | 59eac |
| hex | 4605c |
286812 has 36 divisors (see below), whose sum is σ = 751296. Its totient is φ = 92160.
The previous prime is 286801. The next prime is 286813. The reversal of 286812 is 218682.
286812 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is a tau number, because it is divible by the number of its divisors (36).
It is a super-2 number, since 2×2868122 = 164522246688, which contains 22 as substring.
It is a congruent number.
It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 286812.
It is not an unprimeable number, because it can be changed into a prime (286813) by changing a digit.
286812 is an untouchable number, because it is not equal to the sum of proper divisors of any number.
It is a pernicious number, because its binary representation contains a prime number (7) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 988 + ... + 1244.
2286812 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 286812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (375648).
286812 is an abundant number, since it is smaller than the sum of its proper divisors (464484).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
286812 is a wasteful number, since it uses less digits than its factorization.
286812 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 298 (or 293 counting only the distinct ones).
The product of its digits is 1536, while the sum is 27.
The square root of 286812 is about 535.5483171479. The cubic root of 286812 is about 65.9476168375.
It can be divided in two parts, 286 and 812, that multiplied together give a palindrome (232232).
The spelling of 286812 in words is "two hundred eighty-six thousand, eight hundred twelve".
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