21,082 in words
21,082
twenty-one thousand and eighty-two
21,082 is written twenty-one thousand and eighty-two.
Ways to write it
- As an ordinal
- twenty-one thousand and eighty-second
- Expanded form
- 20,000 + 1,000 + 80 + 2
Place value
| Place | Digit | Value |
|---|---|---|
| ten thousands | 2 | 20,000 |
| thousands | 1 | 1,000 |
| hundreds | 0 | 0 |
| tens | 8 | 80 |
| ones | 2 | 2 |
Number facts
- Even or odd
- Even
- Prime or composite
- Composite
- Factors
- 1, 2, 83, 127, 166, 254, 10,541 and 21,082 (8 factors)
- First 10 multiples
- 21,082, 42,164, 63,246, 84,328, 105,410, 126,492, 147,574, 168,656, 189,738, 210,820
- Square
- 21,082 × 21,082 = 444,450,724
- Square root
- ≈ 145.20
- Sum of the digits
- 2 + 1 + 0 + 8 + 2 = 13
- Rounded to the nearest 10
- 21,080
- Rounded to the nearest 100
- 21,100
- Rounded to the nearest 1000
- 21,000
- Number before
- 21,081
- Number after
- 21,083
- In binary
101001001011010
Quick check
What number comes just after 21,082?
Show the answer
21,083
Is 21,082 even or odd?
Show the answer
Even
What is 21,082 + 10?
Show the answer
21,092
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 21,082 in words?
21,082 is written "twenty-one thousand and eighty-two".
Is 21,082 a prime number?
No. 21,082 is a composite number, because it has more than two factors.
What are the factors of 21,082?
The factors of 21,082 are 1, 2, 83, 127, 166, 254, 10,541 and 21,082.