20,171 in words
20,171
twenty thousand one hundred and seventy-one
20,171 is written twenty thousand one hundred and seventy-one.
Ways to write it
- As an ordinal
- twenty thousand one hundred and seventy-first
- Expanded form
- 20,000 + 100 + 70 + 1
Place value
| Place | Digit | Value |
|---|---|---|
| ten thousands | 2 | 20,000 |
| thousands | 0 | 0 |
| hundreds | 1 | 100 |
| tens | 7 | 70 |
| ones | 1 | 1 |
Number facts
- Even or odd
- Odd
- Prime or composite
- Composite
- Factors
- 1, 23, 877 and 20,171 (4 factors)
- First 10 multiples
- 20,171, 40,342, 60,513, 80,684, 100,855, 121,026, 141,197, 161,368, 181,539, 201,710
- Square
- 20,171 × 20,171 = 406,869,241
- Square root
- ≈ 142.02
- Sum of the digits
- 2 + 0 + 1 + 7 + 1 = 11
- Rounded to the nearest 10
- 20,170
- Rounded to the nearest 100
- 20,200
- Rounded to the nearest 1000
- 20,000
- Number before
- 20,170
- Number after
- 20,172
- In binary
100111011001011
Quick check
What number comes just after 20,171?
Show the answer
20,172
Is 20,171 even or odd?
Show the answer
Odd
What is 20,171 + 10?
Show the answer
20,181
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 20,171 in words?
20,171 is written "twenty thousand one hundred and seventy-one".
Is 20,171 a prime number?
No. 20,171 is a composite number, because it has more than two factors.
What are the factors of 20,171?
The factors of 20,171 are 1, 23, 877 and 20,171.