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2193 = 31743
BaseRepresentation
bin100010010001
310000020
4202101
532233
614053
76252
oct4221
93006
102193
111714
121329
13cc9
14b29
159b3
hex891

2193 has 8 divisors (see below), whose sum is σ = 3168. Its totient is φ = 1344.

The previous prime is 2179. The next prime is 2203. The reversal of 2193 is 3912.

Adding to 2193 its reverse (3912), we get a triangular number (6105 = T110).

It can be divided in two parts, 219 and 3, that added together give a palindrome (222).

2193 is nontrivially palindromic in base 2.

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

It is not a de Polignac number, because 2193 - 25 = 2161 is a prime.

It is a nialpdrome in base 8 and base 13.

It is not an unprimeable number, because it can be changed into a prime (2113) 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, 30 + ... + 72.

It is an arithmetic number, because the mean of its divisors is an integer number (396).

It is an amenable number.

2193 is a deficient number, since it is larger than the sum of its proper divisors (975).

2193 is a wasteful number, since it uses less digits than its factorization.

2193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63.

The product of its digits is 54, while the sum is 15.

The square root of 2193 is about 46.8294778959. The cubic root of 2193 is about 12.9921056607.

The spelling of 2193 in words is "two thousand, one hundred ninety-three".

Divisors: 1 3 17 43 51 129 731 2193