20,842 in words
20,842
twenty thousand eight hundred forty-two
20,842 is written twenty thousand eight hundred forty-two.
Ways to write it
- As an ordinal
- twenty thousand eight hundred forty-second
- Expanded form
- 20,000 + 800 + 40 + 2
Place value
| Place | Digit | Value |
|---|---|---|
| ten thousands | 2 | 20,000 |
| thousands | 0 | 0 |
| hundreds | 8 | 800 |
| tens | 4 | 40 |
| ones | 2 | 2 |
Number facts
- Even or odd
- Even
- Prime or composite
- Composite
- Factors
- 1, 2, 17, 34, 613, 1,226, 10,421 and 20,842 (8 factors)
- First 10 multiples
- 20,842, 41,684, 62,526, 83,368, 104,210, 125,052, 145,894, 166,736, 187,578, 208,420
- Square
- 20,842 × 20,842 = 434,388,964
- Square root
- ≈ 144.37
- Sum of the digits
- 2 + 0 + 8 + 4 + 2 = 16
- Rounded to the nearest 10
- 20,840
- Rounded to the nearest 100
- 20,800
- Rounded to the nearest 1000
- 21,000
- Number before
- 20,841
- Number after
- 20,843
- In binary
101000101101010
Quick check
What number comes just after 20,842?
Show the answer
20,843
Is 20,842 even or odd?
Show the answer
Even
What is 20,842 + 10?
Show the answer
20,852
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 20,842 in words?
20,842 is written "twenty thousand eight hundred forty-two".
Is 20,842 a prime number?
No. 20,842 is a composite number, because it has more than two factors.
What are the factors of 20,842?
The factors of 20,842 are 1, 2, 17, 34, 613, 1,226, 10,421 and 20,842.