29,821 in words
29,821
twenty-nine thousand eight hundred and twenty-one
29,821 is written twenty-nine thousand eight hundred and twenty-one.
Ways to write it
- As an ordinal
- twenty-nine thousand eight hundred and twenty-first
- Expanded form
- 20,000 + 9,000 + 800 + 20 + 1
Place value
| Place | Digit | Value |
|---|---|---|
| ten thousands | 2 | 20,000 |
| thousands | 9 | 9,000 |
| hundreds | 8 | 800 |
| tens | 2 | 20 |
| ones | 1 | 1 |
Number facts
- Even or odd
- Odd
- Prime or composite
- Composite
- Factors
- 1, 11, 2,711 and 29,821 (4 factors)
- First 10 multiples
- 29,821, 59,642, 89,463, 119,284, 149,105, 178,926, 208,747, 238,568, 268,389, 298,210
- Square
- 29,821 × 29,821 = 889,292,041
- Square root
- ≈ 172.69
- Sum of the digits
- 2 + 9 + 8 + 2 + 1 = 22
- Rounded to the nearest 10
- 29,820
- Rounded to the nearest 100
- 29,800
- Rounded to the nearest 1000
- 30,000
- Number before
- 29,820
- Number after
- 29,822
- In binary
111010001111101
Quick check
What number comes just after 29,821?
Show the answer
29,822
Is 29,821 even or odd?
Show the answer
Odd
What is 29,821 + 10?
Show the answer
29,831
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 29,821 in words?
29,821 is written "twenty-nine thousand eight hundred and twenty-one".
Is 29,821 a prime number?
No. 29,821 is a composite number, because it has more than two factors.
What are the factors of 29,821?
The factors of 29,821 are 1, 11, 2,711 and 29,821.