31,142 in words
31,142
thirty-one thousand one hundred forty-two
31,142 is written thirty-one thousand one hundred forty-two.
Ways to write it
- As an ordinal
- thirty-one thousand one hundred forty-second
- Expanded form
- 30,000 + 1,000 + 100 + 40 + 2
Place value
| Place | Digit | Value |
|---|---|---|
| ten thousands | 3 | 30,000 |
| thousands | 1 | 1,000 |
| hundreds | 1 | 100 |
| tens | 4 | 40 |
| ones | 2 | 2 |
Number facts
- Even or odd
- Even
- Prime or composite
- Composite
- Factors
- 1, 2, 23, 46, 677, 1,354, 15,571 and 31,142 (8 factors)
- First 10 multiples
- 31,142, 62,284, 93,426, 124,568, 155,710, 186,852, 217,994, 249,136, 280,278, 311,420
- Square
- 31,142 × 31,142 = 969,824,164
- Square root
- ≈ 176.47
- Sum of the digits
- 3 + 1 + 1 + 4 + 2 = 11
- Rounded to the nearest 10
- 31,140
- Rounded to the nearest 100
- 31,100
- Rounded to the nearest 1000
- 31,000
- Number before
- 31,141
- Number after
- 31,143
- In binary
111100110100110
Quick check
What number comes just after 31,142?
Show the answer
31,143
Is 31,142 even or odd?
Show the answer
Even
What is 31,142 + 10?
Show the answer
31,152
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 31,142 in words?
31,142 is written "thirty-one thousand one hundred forty-two".
Is 31,142 a prime number?
No. 31,142 is a composite number, because it has more than two factors.
What are the factors of 31,142?
The factors of 31,142 are 1, 2, 23, 46, 677, 1,354, 15,571 and 31,142.