42,139 in words
42,139
forty-two thousand one hundred thirty-nine
42,139 is written forty-two thousand one hundred thirty-nine.
Ways to write it
- As an ordinal
- forty-two thousand one hundred thirty-ninth
- Expanded form
- 40,000 + 2,000 + 100 + 30 + 9
Place value
| Place | Digit | Value |
|---|---|---|
| ten thousands | 4 | 40,000 |
| thousands | 2 | 2,000 |
| hundreds | 1 | 100 |
| tens | 3 | 30 |
| ones | 9 | 9 |
Number facts
- Even or odd
- Odd
- Prime or composite
- Prime
- Factors
- 1 and 42,139 (2 factors)
- First 10 multiples
- 42,139, 84,278, 126,417, 168,556, 210,695, 252,834, 294,973, 337,112, 379,251, 421,390
- Square
- 42,139 × 42,139 = 1,775,695,321
- Square root
- ≈ 205.28
- Sum of the digits
- 4 + 2 + 1 + 3 + 9 = 19
- Rounded to the nearest 10
- 42,140
- Rounded to the nearest 100
- 42,100
- Rounded to the nearest 1000
- 42,000
- Number before
- 42,138
- Number after
- 42,140
- In binary
1010010010011011
Quick check
What number comes just after 42,139?
Show the answer
42,140
Is 42,139 even or odd?
Show the answer
Odd
What is 42,139 + 10?
Show the answer
42,149
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 42,139 in words?
42,139 is written "forty-two thousand one hundred thirty-nine".
Is 42,139 a prime number?
Yes. 42,139 is a prime number: its only factors are 1 and 42,139.
What are the factors of 42,139?
The factors of 42,139 are 1 and 42,139.