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12843 = 321427
BaseRepresentation
bin11001000101011
3122121200
43020223
5402333
6135243
752305
oct31053
918550
1012843
119716
127523
135acc
144975
153c13
hex322b

12843 has 6 divisors (see below), whose sum is σ = 18564. Its totient is φ = 8556.

The previous prime is 12841. The next prime is 12853. The reversal of 12843 is 34821.

It is a happy number.

12843 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12843 - 21 = 12841 is a prime.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (12841) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 705 + ... + 722.

It is an arithmetic number, because the mean of its divisors is an integer number (3094).

12843 is a Friedman number, since it can be written as 4281*3, using all its digits and the basic arithmetic operations.

212843 is an apocalyptic number.

12843 is a deficient number, since it is larger than the sum of its proper divisors (5721).

12843 is a wasteful number, since it uses less digits than its factorization.

12843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1433 (or 1430 counting only the distinct ones).

The product of its digits is 192, while the sum is 18.

The square root of 12843 is about 113.3269606051. The cubic root of 12843 is about 23.4183069537.

It can be divided in two parts, 128 and 43, that added together give a palindrome (171).

The spelling of 12843 in words is "twelve thousand, eight hundred forty-three".

Divisors: 1 3 9 1427 4281 12843