21,333 in words
21,333
twenty-one thousand three hundred thirty-three
21,333 is written twenty-one thousand three hundred thirty-three.
Ways to write it
- As an ordinal
- twenty-one thousand three hundred thirty-third
- Expanded form
- 20,000 + 1,000 + 300 + 30 + 3
Place value
| Place | Digit | Value |
|---|---|---|
| ten thousands | 2 | 20,000 |
| thousands | 1 | 1,000 |
| hundreds | 3 | 300 |
| tens | 3 | 30 |
| ones | 3 | 3 |
Number facts
- Even or odd
- Odd
- Prime or composite
- Composite
- Factors
- 1, 3, 13, 39, 547, 1,641, 7,111 and 21,333 (8 factors)
- First 10 multiples
- 21,333, 42,666, 63,999, 85,332, 106,665, 127,998, 149,331, 170,664, 191,997, 213,330
- Square
- 21,333 × 21,333 = 455,096,889
- Square root
- ≈ 146.06
- Sum of the digits
- 2 + 1 + 3 + 3 + 3 = 12
- Rounded to the nearest 10
- 21,330
- Rounded to the nearest 100
- 21,300
- Rounded to the nearest 1000
- 21,000
- Number before
- 21,332
- Number after
- 21,334
- In binary
101001101010101
Quick check
What number comes just after 21,333?
Show the answer
21,334
Is 21,333 even or odd?
Show the answer
Odd
What is 21,333 + 10?
Show the answer
21,343
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 21,333 in words?
21,333 is written "twenty-one thousand three hundred thirty-three".
Is 21,333 a prime number?
No. 21,333 is a composite number, because it has more than two factors.
What are the factors of 21,333?
The factors of 21,333 are 1, 3, 13, 39, 547, 1,641, 7,111 and 21,333.