21,073 in words
21,073
twenty-one thousand seventy-three
21,073 is written twenty-one thousand seventy-three.
Ways to write it
- As an ordinal
- twenty-one thousand seventy-third
- Expanded form
- 20,000 + 1,000 + 70 + 3
Place value
| Place | Digit | Value |
|---|---|---|
| ten thousands | 2 | 20,000 |
| thousands | 1 | 1,000 |
| hundreds | 0 | 0 |
| tens | 7 | 70 |
| ones | 3 | 3 |
Number facts
- Even or odd
- Odd
- Prime or composite
- Composite
- Factors
- 1, 13, 1,621 and 21,073 (4 factors)
- First 10 multiples
- 21,073, 42,146, 63,219, 84,292, 105,365, 126,438, 147,511, 168,584, 189,657, 210,730
- Square
- 21,073 × 21,073 = 444,071,329
- Square root
- ≈ 145.17
- Sum of the digits
- 2 + 1 + 0 + 7 + 3 = 13
- Rounded to the nearest 10
- 21,070
- Rounded to the nearest 100
- 21,100
- Rounded to the nearest 1000
- 21,000
- Number before
- 21,072
- Number after
- 21,074
- In binary
101001001010001
Quick check
What number comes just after 21,073?
Show the answer
21,074
Is 21,073 even or odd?
Show the answer
Odd
What is 21,073 + 10?
Show the answer
21,083
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 21,073 in words?
21,073 is written "twenty-one thousand seventy-three".
Is 21,073 a prime number?
No. 21,073 is a composite number, because it has more than two factors.
What are the factors of 21,073?
The factors of 21,073 are 1, 13, 1,621 and 21,073.