21,473 in words
21,473
twenty-one thousand four hundred seventy-three
21,473 is written twenty-one thousand four hundred seventy-three.
Ways to write it
- As an ordinal
- twenty-one thousand four hundred seventy-third
- Expanded form
- 20,000 + 1,000 + 400 + 70 + 3
Place value
| Place | Digit | Value |
|---|---|---|
| ten thousands | 2 | 20,000 |
| thousands | 1 | 1,000 |
| hundreds | 4 | 400 |
| tens | 7 | 70 |
| ones | 3 | 3 |
Number facts
- Even or odd
- Odd
- Prime or composite
- Composite
- Factors
- 1, 109, 197 and 21,473 (4 factors)
- First 10 multiples
- 21,473, 42,946, 64,419, 85,892, 107,365, 128,838, 150,311, 171,784, 193,257, 214,730
- Square
- 21,473 × 21,473 = 461,089,729
- Square root
- ≈ 146.54
- Sum of the digits
- 2 + 1 + 4 + 7 + 3 = 17
- Rounded to the nearest 10
- 21,470
- Rounded to the nearest 100
- 21,500
- Rounded to the nearest 1000
- 21,000
- Number before
- 21,472
- Number after
- 21,474
- In binary
101001111100001
Quick check
What number comes just after 21,473?
Show the answer
21,474
Is 21,473 even or odd?
Show the answer
Odd
What is 21,473 + 10?
Show the answer
21,483
Practice 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 21,473 in words?
21,473 is written "twenty-one thousand four hundred seventy-three".
Is 21,473 a prime number?
No. 21,473 is a composite number, because it has more than two factors.
What are the factors of 21,473?
The factors of 21,473 are 1, 109, 197 and 21,473.