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16943 is a prime number
BaseRepresentation
bin100001000101111
3212020112
410020233
51020233
6210235
7100253
oct41057
925215
1016943
1111803
12997b
137934
146263
155048
hex422f

16943 has 2 divisors, whose sum is σ = 16944. Its totient is φ = 16942.

The previous prime is 16937. The next prime is 16963. The reversal of 16943 is 34961.

It is a weak prime.

It is an emirp because it is prime and its reverse (34961) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16943 - 24 = 16927 is a prime.

It is a Chen prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16903) 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 as a sum of consecutive naturals, namely, 8471 + 8472.

It is an arithmetic number, because the mean of its divisors is an integer number (8472).

216943 is an apocalyptic number.

16943 is a deficient number, since it is larger than the sum of its proper divisors (1).

16943 is an equidigital number, since it uses as much as digits as its factorization.

16943 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 648, while the sum is 23.

The square root of 16943 is about 130.1652795487. The cubic root of 16943 is about 25.6840458748.

It can be divided in two parts, 169 and 43, that added together give a palindrome (212).

The spelling of 16943 in words is "sixteen thousand, nine hundred forty-three".