289 in words
289
two hundred and eighty-nine
289 is written two hundred and eighty-nine.
Ways to write it
- As an ordinal
- two hundred and eighty-ninth
- Roman numeral
- CCLXXXIX
- Expanded form
- 200 + 80 + 9
Place value
| Place | Digit | Value |
|---|---|---|
| hundreds | 2 | 200 |
| tens | 8 | 80 |
| ones | 9 | 9 |
Number facts
- Even or odd
- Odd
- Prime or composite
- Composite
- Factors
- 1, 17 and 289 (3 factors)
- First 10 multiples
- 289, 578, 867, 1,156, 1,445, 1,734, 2,023, 2,312, 2,601, 2,890
- Square
- 289 × 289 = 83,521
- Square root
- 17
- Sum of the digits
- 2 + 8 + 9 = 19
- Rounded to the nearest 10
- 290
- Rounded to the nearest 100
- 300
- Number before
- 288
- Number after
- 290
- In binary
100100001
Quick check
What number comes just after 289?
Show the answer
290
Is 289 even or odd?
Show the answer
Odd
What is 289 + 10?
Show the answer
299
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 289 in words?
289 is written "two hundred and eighty-nine".
Is 289 a prime number?
No. 289 is a composite number, because it has more than two factors.
What are the factors of 289?
The factors of 289 are 1, 17 and 289.
How do you write 289 in Roman numerals?
289 in Roman numerals is CCLXXXIX.