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82943 = 717241
BaseRepresentation
bin10100001111111111
311012202222
4110033333
510123233
61435555
7463550
oct241777
9135688
1082943
1157353
123bbbb
132b9a3
1422327
1519898
hex143ff

82943 has 12 divisors (see below), whose sum is σ = 103152. Its totient is φ = 65280.

The previous prime is 82939. The next prime is 82963. The reversal of 82943 is 34928.

82943 = T42 + T43 + ... + T82.

It is a Cunningham number, because it is equal to 2882-1.

It is not a de Polignac number, because 82943 - 22 = 82939 is a prime.

It is a plaindrome in base 9 and base 12.

It is a zygodrome in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82903) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2003 + ... + 2043.

It is an arithmetic number, because the mean of its divisors is an integer number (8596).

282943 is an apocalyptic number.

82943 is a deficient number, since it is larger than the sum of its proper divisors (20209).

82943 is a wasteful number, since it uses less digits than its factorization.

82943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82 (or 65 counting only the distinct ones).

The product of its digits is 1728, while the sum is 26.

The square root of 82943 is about 287.9982638837. The cubic root of 82943 is about 43.6107189649.

The spelling of 82943 in words is "eighty-two thousand, nine hundred forty-three".

Divisors: 1 7 17 41 119 287 289 697 2023 4879 11849 82943