189 in words
189
one hundred and eighty-nine
189 is written one hundred and eighty-nine.
Ways to write it
- As an ordinal
- one hundred and eighty-ninth
- Roman numeral
- CLXXXIX
- Expanded form
- 100 + 80 + 9
Place value
| Place | Digit | Value |
|---|---|---|
| hundreds | 1 | 100 |
| tens | 8 | 80 |
| ones | 9 | 9 |
Number facts
- Even or odd
- Odd
- Prime or composite
- Composite
- Factors
- 1, 3, 7, 9, 21, 27, 63 and 189 (8 factors)
- First 10 multiples
- 189, 378, 567, 756, 945, 1,134, 1,323, 1,512, 1,701, 1,890
- Square
- 189 × 189 = 35,721
- Square root
- ≈ 13.75
- Sum of the digits
- 1 + 8 + 9 = 18
- Rounded to the nearest 10
- 190
- Rounded to the nearest 100
- 200
- Number before
- 188
- Number after
- 190
- In binary
10111101
Quick check
What number comes just after 189?
Show the answer
190
Is 189 even or odd?
Show the answer
Odd
What is 189 + 10?
Show the answer
199
Practise with a game
Factors, Multiples & Primes
Multiples, factors, prime numbers, square numbers and prime factors.
Roman Numerals
Read and write Roman numerals from I to 3,999.Frequently asked questions
How do you write 189 in words?
189 is written "one hundred and eighty-nine".
Is 189 a prime number?
No. 189 is a composite number, because it has more than two factors.
What are the factors of 189?
The factors of 189 are 1, 3, 7, 9, 21, 27, 63 and 189.
How do you write 189 in Roman numerals?
189 in Roman numerals is CLXXXIX.