20,431 in words
20,431
twenty thousand four hundred thirty-one
20,431 is written twenty thousand four hundred thirty-one.
Ways to write it
- As an ordinal
- twenty thousand four hundred thirty-first
- Expanded form
- 20,000 + 400 + 30 + 1
Place value
| Place | Digit | Value |
|---|---|---|
| ten thousands | 2 | 20,000 |
| thousands | 0 | 0 |
| hundreds | 4 | 400 |
| tens | 3 | 30 |
| ones | 1 | 1 |
Number facts
- Even or odd
- Odd
- Prime or composite
- Prime
- Factors
- 1 and 20,431 (2 factors)
- First 10 multiples
- 20,431, 40,862, 61,293, 81,724, 102,155, 122,586, 143,017, 163,448, 183,879, 204,310
- Square
- 20,431 × 20,431 = 417,425,761
- Square root
- ≈ 142.94
- Sum of the digits
- 2 + 0 + 4 + 3 + 1 = 10
- Rounded to the nearest 10
- 20,430
- Rounded to the nearest 100
- 20,400
- Rounded to the nearest 1000
- 20,000
- Number before
- 20,430
- Number after
- 20,432
- In binary
100111111001111
Quick check
What number comes just after 20,431?
Show the answer
20,432
Is 20,431 even or odd?
Show the answer
Odd
What is 20,431 + 10?
Show the answer
20,441
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 20,431 in words?
20,431 is written "twenty thousand four hundred thirty-one".
Is 20,431 a prime number?
Yes. 20,431 is a prime number: its only factors are 1 and 20,431.
What are the factors of 20,431?
The factors of 20,431 are 1 and 20,431.