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2188 = 22547
BaseRepresentation
bin100010001100
310000001
4202030
532223
614044
76244
oct4214
93001
102188
11170a
121324
13cc4
14b24
159ad
hex88c

2188 has 6 divisors (see below), whose sum is σ = 3836. Its totient is φ = 1092.

The previous prime is 2179. The next prime is 2203. The reversal of 2188 is 8812.

It is a happy number.

2188 is nontrivially palindromic in base 3 and base 5.

It is a Cunningham number, because it is equal to 37+1.

It is the 10-th Motzkin number.

It is a plaindrome in base 15 and base 16.

It is a nialpdrome in base 13.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270 + ... + 277.

It is an amenable number.

2188 is a deficient number, since it is larger than the sum of its proper divisors (1648).

2188 is a wasteful number, since it uses less digits than its factorization.

2188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551 (or 549 counting only the distinct ones).

The product of its digits is 128, while the sum is 19.

The square root of 2188 is about 46.7760622541. The cubic root of 2188 is about 12.9822242258.

It can be divided in two parts, 2 and 188, that added together give a triangular number (190 = T19).

The spelling of 2188 in words is "two thousand, one hundred eighty-eight".

Divisors: 1 2 4 547 1094 2188