189 (number)

189 is a natural number following 188 and preceding 190.

Mathematics

• 189 is a composite number.
• Its prime factorization is 3 x 3 x 3 x 7 (3³ x 7).
• It has 8 divisors: 1, 3, 7, 9, 21, 27, 63, and 189.
• 189 is an odd number.
• 189 is a Harshad number, as it is divisible by the sum of its digits (1+8+9 = 18).
• It is not a perfect number, as the sum of its proper divisors (1 + 3 + 7 + 9 + 21 + 27 + 63 = 131) is less than 189.

Other Fields

• The number 189 may appear in various contexts, such as identifying a street address, a bus route number, or a model number of a product. These usages are context-dependent and vary widely.