21,773 in words
21,773
twenty-one thousand seven hundred seventy-three
21,773 is written twenty-one thousand seven hundred seventy-three.
Ways to write it
- As an ordinal
- twenty-one thousand seven hundred seventy-third
- Expanded form
- 20,000 + 1,000 + 700 + 70 + 3
Place value
| Place | Digit | Value |
|---|---|---|
| ten thousands | 2 | 20,000 |
| thousands | 1 | 1,000 |
| hundreds | 7 | 700 |
| tens | 7 | 70 |
| ones | 3 | 3 |
Number facts
- Even or odd
- Odd
- Prime or composite
- Prime
- Factors
- 1 and 21,773 (2 factors)
- First 10 multiples
- 21,773, 43,546, 65,319, 87,092, 108,865, 130,638, 152,411, 174,184, 195,957, 217,730
- Square
- 21,773 × 21,773 = 474,063,529
- Square root
- ≈ 147.56
- Sum of the digits
- 2 + 1 + 7 + 7 + 3 = 20
- Rounded to the nearest 10
- 21,770
- Rounded to the nearest 100
- 21,800
- Rounded to the nearest 1000
- 22,000
- Number before
- 21,772
- Number after
- 21,774
- In binary
101010100001101
Quick check
What number comes just after 21,773?
Show the answer
21,774
Is 21,773 even or odd?
Show the answer
Odd
What is 21,773 + 10?
Show the answer
21,783
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 21,773 in words?
21,773 is written "twenty-one thousand seven hundred seventy-three".
Is 21,773 a prime number?
Yes. 21,773 is a prime number: its only factors are 1 and 21,773.
What are the factors of 21,773?
The factors of 21,773 are 1 and 21,773.