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22243 = 132959
BaseRepresentation
bin101011011100011
31010111211
411123203
51202433
6250551
7121564
oct53343
933454
1022243
1115791
1210a57
13a180
14816b
1568cd
hex56e3

22243 has 8 divisors (see below), whose sum is σ = 25200. Its totient is φ = 19488.

The previous prime is 22229. The next prime is 22247. The reversal of 22243 is 34222.

22243 divided by its sum of digits (13) gives a triangular number (1711 = T58).

Adding to 22243 its reverse (34222), we get a palindrome (56465).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22243 - 213 = 14051 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a d-powerful number, because it can be written as 28 + 210 + 210 + 44 + 39 .

It is a Duffinian number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (22247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 348 + ... + 406.

It is an arithmetic number, because the mean of its divisors is an integer number (3150).

222243 is an apocalyptic number.

22243 is a deficient number, since it is larger than the sum of its proper divisors (2957).

22243 is a wasteful number, since it uses less digits than its factorization.

22243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101.

The product of its digits is 96, while the sum is 13.

The square root of 22243 is about 149.1408730027. The cubic root of 22243 is about 28.1231817755.

The spelling of 22243 in words is "twenty-two thousand, two hundred forty-three", and thus it is an iban number.

Divisors: 1 13 29 59 377 767 1711 22243