42,640 in words
42,640
forty-two thousand six hundred forty
42,640 is written forty-two thousand six hundred forty.
Ways to write it
- As an ordinal
- forty-two thousand six hundred fortieth
- Expanded form
- 40,000 + 2,000 + 600 + 40
Place value
| Place | Digit | Value |
|---|---|---|
| ten thousands | 4 | 40,000 |
| thousands | 2 | 2,000 |
| hundreds | 6 | 600 |
| tens | 4 | 40 |
| ones | 0 | 0 |
Number facts
- Even or odd
- Even
- Prime or composite
- Composite
- Factors
- 1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 41, 52, 65, 80, 82, 104, 130, 164, 205, 208, 260, 328, 410, 520, 533, 656, 820, 1,040, 1,066, 1,640, 2,132, 2,665, 3,280, 4,264, 5,330, 8,528, 10,660, 21,320 and 42,640 (40 factors)
- First 10 multiples
- 42,640, 85,280, 127,920, 170,560, 213,200, 255,840, 298,480, 341,120, 383,760, 426,400
- Square
- 42,640 × 42,640 = 1,818,169,600
- Square root
- ≈ 206.49
- Sum of the digits
- 4 + 2 + 6 + 4 + 0 = 16
- Rounded to the nearest 10
- 42,640
- Rounded to the nearest 100
- 42,600
- Rounded to the nearest 1000
- 43,000
- Number before
- 42,639
- Number after
- 42,641
- In binary
1010011010010000
Quick check
What number comes just after 42,640?
Show the answer
42,641
Is 42,640 even or odd?
Show the answer
Even
What is 42,640 + 10?
Show the answer
42,650
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 42,640 in words?
42,640 is written "forty-two thousand six hundred forty".
Is 42,640 a prime number?
No. 42,640 is a composite number, because it has more than two factors.
What are the factors of 42,640?
The factors of 42,640 are 1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 41, 52, 65, 80, 82, 104, 130, 164, 205, 208, 260, 328, 410, 520, 533, 656, 820, 1,040, 1,066, 1,640, 2,132, 2,665, 3,280, 4,264, 5,330, 8,528, 10,660, 21,320 and 42,640.