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BaseRepresentation
bin100010101111
310001100
4202233
532343
614143
76324
oct4257
93040
102223
111741
121353
131020
14b4b
159d3
hex8af

2223 has 12 divisors (see below), whose sum is σ = 3640. Its totient is φ = 1296.

The previous prime is 2221. The next prime is 2237. The reversal of 2223 is 3222.

Adding to 2223 its reverse (3222), we get a palindrome (5445).

Subtracting 2223 from its reverse (3222), we obtain a palindrome (999).

It can be divided in two parts, 222 and 3, that multiplied together give a palindrome (666).

2223 is nontrivially palindromic in base 14.

2223 is an esthetic number in base 5, because in such base its adjacent digits differ by 1.

It is not a de Polignac number, because 2223 - 21 = 2221 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a d-powerful number, because it can be written as 22 + 24 + 24 + 37 .

2223 is an undulating number in base 14.

It is a plaindrome in base 10 and base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221) by changing a digit.

It is a Kaprekar number, because its square (4941729) can be partitioned into two parts whose sum is 2223.

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 11 ways as a sum of consecutive naturals, for example, 108 + ... + 126.

22223 is an apocalyptic number.

2223 is a deficient number, since it is larger than the sum of its proper divisors (1417).

2223 is a wasteful number, since it uses less digits than its factorization.

2223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38 (or 35 counting only the distinct ones).

The product of its digits is 24, while the sum is 9.

The square root of 2223 is about 47.1487009365. The cubic root of 2223 is about 13.0510810748.

The spelling of 2223 in words is "two thousand, two hundred twenty-three", and thus it is an iban number.

Divisors: 1 3 9 13 19 39 57 117 171 247 741 2223