20,109 in words
20,109
twenty thousand one hundred and nine
20,109 is written twenty thousand one hundred and nine.
Ways to write it
- As an ordinal
- twenty thousand one hundred and ninth
- Expanded form
- 20,000 + 100 + 9
Place value
| Place | Digit | Value |
|---|---|---|
| ten thousands | 2 | 20,000 |
| thousands | 0 | 0 |
| hundreds | 1 | 100 |
| tens | 0 | 0 |
| ones | 9 | 9 |
Number facts
- Even or odd
- Odd
- Prime or composite
- Composite
- Factors
- 1, 3, 6,703 and 20,109 (4 factors)
- First 10 multiples
- 20,109, 40,218, 60,327, 80,436, 100,545, 120,654, 140,763, 160,872, 180,981, 201,090
- Square
- 20,109 × 20,109 = 404,371,881
- Square root
- ≈ 141.81
- Sum of the digits
- 2 + 0 + 1 + 0 + 9 = 12
- Rounded to the nearest 10
- 20,110
- Rounded to the nearest 100
- 20,100
- Rounded to the nearest 1000
- 20,000
- Number before
- 20,108
- Number after
- 20,110
- In binary
100111010001101
Quick check
What number comes just after 20,109?
Show the answer
20,110
Is 20,109 even or odd?
Show the answer
Odd
What is 20,109 + 10?
Show the answer
20,119
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 20,109 in words?
20,109 is written "twenty thousand one hundred and nine".
Is 20,109 a prime number?
No. 20,109 is a composite number, because it has more than two factors.
What are the factors of 20,109?
The factors of 20,109 are 1, 3, 6,703 and 20,109.