42,820 in words
42,820
forty-two thousand eight hundred twenty
42,820 is written forty-two thousand eight hundred twenty.
Ways to write it
- As an ordinal
- forty-two thousand eight hundred twentieth
- Expanded form
- 40,000 + 2,000 + 800 + 20
Place value
| Place | Digit | Value |
|---|---|---|
| ten thousands | 4 | 40,000 |
| thousands | 2 | 2,000 |
| hundreds | 8 | 800 |
| tens | 2 | 20 |
| ones | 0 | 0 |
Number facts
- Even or odd
- Even
- Prime or composite
- Composite
- Factors
- 1, 2, 4, 5, 10, 20, 2,141, 4,282, 8,564, 10,705, 21,410 and 42,820 (12 factors)
- First 10 multiples
- 42,820, 85,640, 128,460, 171,280, 214,100, 256,920, 299,740, 342,560, 385,380, 428,200
- Square
- 42,820 × 42,820 = 1,833,552,400
- Square root
- ≈ 206.93
- Sum of the digits
- 4 + 2 + 8 + 2 + 0 = 16
- Rounded to the nearest 10
- 42,820
- Rounded to the nearest 100
- 42,800
- Rounded to the nearest 1000
- 43,000
- Number before
- 42,819
- Number after
- 42,821
- In binary
1010011101000100
Quick check
What number comes just after 42,820?
Show the answer
42,821
Is 42,820 even or odd?
Show the answer
Even
What is 42,820 + 10?
Show the answer
42,830
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 42,820 in words?
42,820 is written "forty-two thousand eight hundred twenty".
Is 42,820 a prime number?
No. 42,820 is a composite number, because it has more than two factors.
What are the factors of 42,820?
The factors of 42,820 are 1, 2, 4, 5, 10, 20, 2,141, 4,282, 8,564, 10,705, 21,410 and 42,820.