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22982 = 211491
BaseRepresentation
bin101100111000110
31011112012
411213012
51213412
6254222
7124001
oct54706
934465
1022982
11162a3
1211372
13a5cb
148538
156c22
hex59c6

22982 has 4 divisors (see below), whose sum is σ = 34476. Its totient is φ = 11490.

The previous prime is 22973. The next prime is 22993. The reversal of 22982 is 28922.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 28922 = 214461.

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 22982.

It is an unprimeable number.

22982 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5744 + ... + 5747.

It is an arithmetic number, because the mean of its divisors is an integer number (8619).

222982 is an apocalyptic number.

22982 is a deficient number, since it is larger than the sum of its proper divisors (11494).

22982 is a wasteful number, since it uses less digits than its factorization.

22982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11493.

The product of its digits is 576, while the sum is 23.

The square root of 22982 is about 151.5981530230. The cubic root of 22982 is about 28.4312490789.

Adding to 22982 its sum of digits (23), we get a triangular number (23005 = T214).

The spelling of 22982 in words is "twenty-two thousand, nine hundred eighty-two".

Divisors: 1 2 11491 22982