20,720 in words
20,720
twenty thousand seven hundred and twenty
20,720 is written twenty thousand seven hundred and twenty.
Ways to write it
- As an ordinal
- twenty thousand seven hundred and twentieth
- Expanded form
- 20,000 + 700 + 20
Place value
| Place | Digit | Value |
|---|---|---|
| ten thousands | 2 | 20,000 |
| thousands | 0 | 0 |
| hundreds | 7 | 700 |
| tens | 2 | 20 |
| ones | 0 | 0 |
Number facts
- Even or odd
- Even
- Prime or composite
- Composite
- Factors
- 1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 37, 40, 56, 70, 74, 80, 112, 140, 148, 185, 259, 280, 296, 370, 518, 560, 592, 740, 1,036, 1,295, 1,480, 2,072, 2,590, 2,960, 4,144, 5,180, 10,360 and 20,720 (40 factors)
- First 10 multiples
- 20,720, 41,440, 62,160, 82,880, 103,600, 124,320, 145,040, 165,760, 186,480, 207,200
- Square
- 20,720 × 20,720 = 429,318,400
- Square root
- ≈ 143.94
- Sum of the digits
- 2 + 0 + 7 + 2 + 0 = 11
- Rounded to the nearest 10
- 20,720
- Rounded to the nearest 100
- 20,700
- Rounded to the nearest 1000
- 21,000
- Number before
- 20,719
- Number after
- 20,721
- In binary
101000011110000
Quick check
What number comes just after 20,720?
Show the answer
20,721
Is 20,720 even or odd?
Show the answer
Even
What is 20,720 + 10?
Show the answer
20,730
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 20,720 in words?
20,720 is written "twenty thousand seven hundred and twenty".
Is 20,720 a prime number?
No. 20,720 is a composite number, because it has more than two factors.
What are the factors of 20,720?
The factors of 20,720 are 1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 37, 40, 56, 70, 74, 80, 112, 140, 148, 185, 259, 280, 296, 370, 518, 560, 592, 740, 1,036, 1,295, 1,480, 2,072, 2,590, 2,960, 4,144, 5,180, 10,360 and 20,720.