20,800 in words
20,800
twenty thousand eight hundred
20,800 is written twenty thousand eight hundred.
Ways to write it
- As an ordinal
- twenty thousand eight hundredth
- Expanded form
- 20,000 + 800
Place value
| Place | Digit | Value |
|---|---|---|
| ten thousands | 2 | 20,000 |
| thousands | 0 | 0 |
| hundreds | 8 | 800 |
| tens | 0 | 0 |
| ones | 0 | 0 |
Number facts
- Even or odd
- Even
- Prime or composite
- Composite
- Factors
- 1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 64, 65, 80, 100, 104, 130, 160, 200, 208, 260, 320, 325, 400, 416, 520, 650, 800, 832, 1,040, 1,300, 1,600, 2,080, 2,600, 4,160, 5,200, 10,400 and 20,800 (42 factors)
- First 10 multiples
- 20,800, 41,600, 62,400, 83,200, 104,000, 124,800, 145,600, 166,400, 187,200, 208,000
- Square
- 20,800 × 20,800 = 432,640,000
- Square root
- ≈ 144.22
- Sum of the digits
- 2 + 0 + 8 + 0 + 0 = 10
- Rounded to the nearest 10
- 20,800
- Rounded to the nearest 100
- 20,800
- Rounded to the nearest 1000
- 21,000
- Number before
- 20,799
- Number after
- 20,801
- In binary
101000101000000
Quick check
What number comes just after 20,800?
Show the answer
20,801
Is 20,800 even or odd?
Show the answer
Even
What is 20,800 + 10?
Show the answer
20,810
Practise 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 20,800 in words?
20,800 is written "twenty thousand eight hundred".
Is 20,800 a prime number?
No. 20,800 is a composite number, because it has more than two factors.
What are the factors of 20,800?
The factors of 20,800 are 1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 64, 65, 80, 100, 104, 130, 160, 200, 208, 260, 320, 325, 400, 416, 520, 650, 800, 832, 1,040, 1,300, 1,600, 2,080, 2,600, 4,160, 5,200, 10,400 and 20,800.