21,446 in words
21,446
twenty-one thousand four hundred forty-six
21,446 is written twenty-one thousand four hundred forty-six.
Ways to write it
- As an ordinal
- twenty-one thousand four hundred forty-sixth
- Expanded form
- 20,000 + 1,000 + 400 + 40 + 6
Place value
| Place | Digit | Value |
|---|---|---|
| ten thousands | 2 | 20,000 |
| thousands | 1 | 1,000 |
| hundreds | 4 | 400 |
| tens | 4 | 40 |
| ones | 6 | 6 |
Number facts
- Even or odd
- Even
- Prime or composite
- Composite
- Factors
- 1, 2, 10,723 and 21,446 (4 factors)
- First 10 multiples
- 21,446, 42,892, 64,338, 85,784, 107,230, 128,676, 150,122, 171,568, 193,014, 214,460
- Square
- 21,446 × 21,446 = 459,930,916
- Square root
- ≈ 146.44
- Sum of the digits
- 2 + 1 + 4 + 4 + 6 = 17
- Rounded to the nearest 10
- 21,450
- Rounded to the nearest 100
- 21,400
- Rounded to the nearest 1000
- 21,000
- Number before
- 21,445
- Number after
- 21,447
- In binary
101001111000110
Quick check
What number comes just after 21,446?
Show the answer
21,447
Is 21,446 even or odd?
Show the answer
Even
What is 21,446 + 10?
Show the answer
21,456
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 21,446 in words?
21,446 is written "twenty-one thousand four hundred forty-six".
Is 21,446 a prime number?
No. 21,446 is a composite number, because it has more than two factors.
What are the factors of 21,446?
The factors of 21,446 are 1, 2, 10,723 and 21,446.