42,138 in words
42,138
forty-two thousand one hundred thirty-eight
42,138 is written forty-two thousand one hundred thirty-eight.
Ways to write it
- As an ordinal
- forty-two thousand one hundred thirty-eighth
- Expanded form
- 40,000 + 2,000 + 100 + 30 + 8
Place value
| Place | Digit | Value |
|---|---|---|
| ten thousands | 4 | 40,000 |
| thousands | 2 | 2,000 |
| hundreds | 1 | 100 |
| tens | 3 | 30 |
| ones | 8 | 8 |
Number facts
- Even or odd
- Even
- Prime or composite
- Composite
- Factors
- 1, 2, 3, 6, 9, 18, 2,341, 4,682, 7,023, 14,046, 21,069 and 42,138 (12 factors)
- First 10 multiples
- 42,138, 84,276, 126,414, 168,552, 210,690, 252,828, 294,966, 337,104, 379,242, 421,380
- Square
- 42,138 × 42,138 = 1,775,611,044
- Square root
- ≈ 205.28
- Sum of the digits
- 4 + 2 + 1 + 3 + 8 = 18
- Rounded to the nearest 10
- 42,140
- Rounded to the nearest 100
- 42,100
- Rounded to the nearest 1000
- 42,000
- Number before
- 42,137
- Number after
- 42,139
- In binary
1010010010011010
Quick check
What number comes just after 42,138?
Show the answer
42,139
Is 42,138 even or odd?
Show the answer
Even
What is 42,138 + 10?
Show the answer
42,148
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 42,138 in words?
42,138 is written "forty-two thousand one hundred thirty-eight".
Is 42,138 a prime number?
No. 42,138 is a composite number, because it has more than two factors.
What are the factors of 42,138?
The factors of 42,138 are 1, 2, 3, 6, 9, 18, 2,341, 4,682, 7,023, 14,046, 21,069 and 42,138.