20,988 in words
20,988
twenty thousand nine hundred eighty-eight
20,988 is written twenty thousand nine hundred eighty-eight.
Ways to write it
- As an ordinal
- twenty thousand nine hundred eighty-eighth
- Expanded form
- 20,000 + 900 + 80 + 8
Place value
| Place | Digit | Value |
|---|---|---|
| ten thousands | 2 | 20,000 |
| thousands | 0 | 0 |
| hundreds | 9 | 900 |
| tens | 8 | 80 |
| ones | 8 | 8 |
Number facts
- Even or odd
- Even
- Prime or composite
- Composite
- Factors
- 1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 53, 66, 99, 106, 132, 159, 198, 212, 318, 396, 477, 583, 636, 954, 1,166, 1,749, 1,908, 2,332, 3,498, 5,247, 6,996, 10,494 and 20,988 (36 factors)
- First 10 multiples
- 20,988, 41,976, 62,964, 83,952, 104,940, 125,928, 146,916, 167,904, 188,892, 209,880
- Square
- 20,988 × 20,988 = 440,496,144
- Square root
- ≈ 144.87
- Sum of the digits
- 2 + 0 + 9 + 8 + 8 = 27
- Rounded to the nearest 10
- 20,990
- Rounded to the nearest 100
- 21,000
- Rounded to the nearest 1000
- 21,000
- Number before
- 20,987
- Number after
- 20,989
- In binary
101000111111100
Quick check
What number comes just after 20,988?
Show the answer
20,989
Is 20,988 even or odd?
Show the answer
Even
What is 20,988 + 10?
Show the answer
20,998
Practice with a game
Factors, Multiples & Primes
Multiples, factors, prime numbers, square numbers and prime factors.
Number Patterns
Find the missing number in a sequence.Frequently asked questions
How do you write 20,988 in words?
20,988 is written "twenty thousand nine hundred eighty-eight".
Is 20,988 a prime number?
No. 20,988 is a composite number, because it has more than two factors.
What are the factors of 20,988?
The factors of 20,988 are 1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 53, 66, 99, 106, 132, 159, 198, 212, 318, 396, 477, 583, 636, 954, 1,166, 1,749, 1,908, 2,332, 3,498, 5,247, 6,996, 10,494 and 20,988.