21,234 in words
21,234
twenty-one thousand two hundred thirty-four
21,234 is written twenty-one thousand two hundred thirty-four.
Ways to write it
- As an ordinal
- twenty-one thousand two hundred thirty-fourth
- Expanded form
- 20,000 + 1,000 + 200 + 30 + 4
Place value
| Place | Digit | Value |
|---|---|---|
| ten thousands | 2 | 20,000 |
| thousands | 1 | 1,000 |
| hundreds | 2 | 200 |
| tens | 3 | 30 |
| ones | 4 | 4 |
Number facts
- Even or odd
- Even
- Prime or composite
- Composite
- Factors
- 1, 2, 3, 6, 3,539, 7,078, 10,617 and 21,234 (8 factors)
- First 10 multiples
- 21,234, 42,468, 63,702, 84,936, 106,170, 127,404, 148,638, 169,872, 191,106, 212,340
- Square
- 21,234 × 21,234 = 450,882,756
- Square root
- ≈ 145.72
- Sum of the digits
- 2 + 1 + 2 + 3 + 4 = 12
- Rounded to the nearest 10
- 21,230
- Rounded to the nearest 100
- 21,200
- Rounded to the nearest 1000
- 21,000
- Number before
- 21,233
- Number after
- 21,235
- In binary
101001011110010
Quick check
What number comes just after 21,234?
Show the answer
21,235
Is 21,234 even or odd?
Show the answer
Even
What is 21,234 + 10?
Show the answer
21,244
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 21,234 in words?
21,234 is written "twenty-one thousand two hundred thirty-four".
Is 21,234 a prime number?
No. 21,234 is a composite number, because it has more than two factors.
What are the factors of 21,234?
The factors of 21,234 are 1, 2, 3, 6, 3,539, 7,078, 10,617 and 21,234.