82,821 in words
82,821
eighty-two thousand eight hundred and twenty-one
82,821 is written eighty-two thousand eight hundred and twenty-one.
Ways to write it
- As an ordinal
- eighty-two thousand eight hundred and twenty-first
- Expanded form
- 80,000 + 2,000 + 800 + 20 + 1
Place value
| Place | Digit | Value |
|---|---|---|
| ten thousands | 8 | 80,000 |
| thousands | 2 | 2,000 |
| hundreds | 8 | 800 |
| tens | 2 | 20 |
| ones | 1 | 1 |
Number facts
- Even or odd
- Odd
- Prime or composite
- Composite
- Factors
- 1, 3, 19, 57, 1,453, 4,359, 27,607 and 82,821 (8 factors)
- First 10 multiples
- 82,821, 165,642, 248,463, 331,284, 414,105, 496,926, 579,747, 662,568, 745,389, 828,210
- Square
- 82,821 × 82,821 = 6,859,318,041
- Square root
- ≈ 287.79
- Sum of the digits
- 8 + 2 + 8 + 2 + 1 = 21
- Rounded to the nearest 10
- 82,820
- Rounded to the nearest 100
- 82,800
- Rounded to the nearest 1000
- 83,000
- Number before
- 82,820
- Number after
- 82,822
- In binary
10100001110000101
Quick check
What number comes just after 82,821?
Show the answer
82,822
Is 82,821 even or odd?
Show the answer
Odd
What is 82,821 + 10?
Show the answer
82,831
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 82,821 in words?
82,821 is written "eighty-two thousand eight hundred and twenty-one".
Is 82,821 a prime number?
No. 82,821 is a composite number, because it has more than two factors.
What are the factors of 82,821?
The factors of 82,821 are 1, 3, 19, 57, 1,453, 4,359, 27,607 and 82,821.