42,009 in words
42,009
forty-two thousand and nine
42,009 is written forty-two thousand and nine.
Ways to write it
- As an ordinal
- forty-two thousand and ninth
- Expanded form
- 40,000 + 2,000 + 9
Place value
| Place | Digit | Value |
|---|---|---|
| ten thousands | 4 | 40,000 |
| thousands | 2 | 2,000 |
| hundreds | 0 | 0 |
| tens | 0 | 0 |
| ones | 9 | 9 |
Number facts
- Even or odd
- Odd
- Prime or composite
- Composite
- Factors
- 1, 3, 11, 19, 33, 57, 67, 201, 209, 627, 737, 1,273, 2,211, 3,819, 14,003 and 42,009 (16 factors)
- First 10 multiples
- 42,009, 84,018, 126,027, 168,036, 210,045, 252,054, 294,063, 336,072, 378,081, 420,090
- Square
- 42,009 × 42,009 = 1,764,756,081
- Square root
- ≈ 204.96
- Sum of the digits
- 4 + 2 + 0 + 0 + 9 = 15
- Rounded to the nearest 10
- 42,010
- Rounded to the nearest 100
- 42,000
- Rounded to the nearest 1000
- 42,000
- Number before
- 42,008
- Number after
- 42,010
- In binary
1010010000011001
Quick check
What number comes just after 42,009?
Show the answer
42,010
Is 42,009 even or odd?
Show the answer
Odd
What is 42,009 + 10?
Show the answer
42,019
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 42,009 in words?
42,009 is written "forty-two thousand and nine".
Is 42,009 a prime number?
No. 42,009 is a composite number, because it has more than two factors.
What are the factors of 42,009?
The factors of 42,009 are 1, 3, 11, 19, 33, 57, 67, 201, 209, 627, 737, 1,273, 2,211, 3,819, 14,003 and 42,009.