31,842 in words
31,842
thirty-one thousand eight hundred forty-two
31,842 is written thirty-one thousand eight hundred forty-two.
Ways to write it
- As an ordinal
- thirty-one thousand eight hundred forty-second
- Expanded form
- 30,000 + 1,000 + 800 + 40 + 2
Place value
| Place | Digit | Value |
|---|---|---|
| ten thousands | 3 | 30,000 |
| thousands | 1 | 1,000 |
| hundreds | 8 | 800 |
| tens | 4 | 40 |
| ones | 2 | 2 |
Number facts
- Even or odd
- Even
- Prime or composite
- Composite
- Factors
- 1, 2, 3, 6, 9, 18, 29, 58, 61, 87, 122, 174, 183, 261, 366, 522, 549, 1,098, 1,769, 3,538, 5,307, 10,614, 15,921 and 31,842 (24 factors)
- First 10 multiples
- 31,842, 63,684, 95,526, 127,368, 159,210, 191,052, 222,894, 254,736, 286,578, 318,420
- Square
- 31,842 × 31,842 = 1,013,912,964
- Square root
- ≈ 178.44
- Sum of the digits
- 3 + 1 + 8 + 4 + 2 = 18
- Rounded to the nearest 10
- 31,840
- Rounded to the nearest 100
- 31,800
- Rounded to the nearest 1000
- 32,000
- Number before
- 31,841
- Number after
- 31,843
- In binary
111110001100010
Quick check
What number comes just after 31,842?
Show the answer
31,843
Is 31,842 even or odd?
Show the answer
Even
What is 31,842 + 10?
Show the answer
31,852
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 31,842 in words?
31,842 is written "thirty-one thousand eight hundred forty-two".
Is 31,842 a prime number?
No. 31,842 is a composite number, because it has more than two factors.
What are the factors of 31,842?
The factors of 31,842 are 1, 2, 3, 6, 9, 18, 29, 58, 61, 87, 122, 174, 183, 261, 366, 522, 549, 1,098, 1,769, 3,538, 5,307, 10,614, 15,921 and 31,842.