31,243 in words
31,243
thirty-one thousand two hundred forty-three
31,243 is written thirty-one thousand two hundred forty-three.
Ways to write it
- As an ordinal
- thirty-one thousand two hundred forty-third
- Expanded form
- 30,000 + 1,000 + 200 + 40 + 3
Place value
| Place | Digit | Value |
|---|---|---|
| ten thousands | 3 | 30,000 |
| thousands | 1 | 1,000 |
| hundreds | 2 | 200 |
| tens | 4 | 40 |
| ones | 3 | 3 |
Number facts
- Even or odd
- Odd
- Prime or composite
- Composite
- Factors
- 1, 157, 199 and 31,243 (4 factors)
- First 10 multiples
- 31,243, 62,486, 93,729, 124,972, 156,215, 187,458, 218,701, 249,944, 281,187, 312,430
- Square
- 31,243 × 31,243 = 976,125,049
- Square root
- ≈ 176.76
- Sum of the digits
- 3 + 1 + 2 + 4 + 3 = 13
- Rounded to the nearest 10
- 31,240
- Rounded to the nearest 100
- 31,200
- Rounded to the nearest 1000
- 31,000
- Number before
- 31,242
- Number after
- 31,244
- In binary
111101000001011
Quick check
What number comes just after 31,243?
Show the answer
31,244
Is 31,243 even or odd?
Show the answer
Odd
What is 31,243 + 10?
Show the answer
31,253
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 31,243 in words?
31,243 is written "thirty-one thousand two hundred forty-three".
Is 31,243 a prime number?
No. 31,243 is a composite number, because it has more than two factors.
What are the factors of 31,243?
The factors of 31,243 are 1, 157, 199 and 31,243.