21,116 in words
21,116
twenty-one thousand one hundred sixteen
21,116 is written twenty-one thousand one hundred sixteen.
Ways to write it
- As an ordinal
- twenty-one thousand one hundred sixteenth
- Expanded form
- 20,000 + 1,000 + 100 + 10 + 6
Place value
| Place | Digit | Value |
|---|---|---|
| ten thousands | 2 | 20,000 |
| thousands | 1 | 1,000 |
| hundreds | 1 | 100 |
| tens | 1 | 10 |
| ones | 6 | 6 |
Number facts
- Even or odd
- Even
- Prime or composite
- Composite
- Factors
- 1, 2, 4, 5,279, 10,558 and 21,116 (6 factors)
- First 10 multiples
- 21,116, 42,232, 63,348, 84,464, 105,580, 126,696, 147,812, 168,928, 190,044, 211,160
- Square
- 21,116 × 21,116 = 445,885,456
- Square root
- ≈ 145.31
- Sum of the digits
- 2 + 1 + 1 + 1 + 6 = 11
- Rounded to the nearest 10
- 21,120
- Rounded to the nearest 100
- 21,100
- Rounded to the nearest 1000
- 21,000
- Number before
- 21,115
- Number after
- 21,117
- In binary
101001001111100
Quick check
What number comes just after 21,116?
Show the answer
21,117
Is 21,116 even or odd?
Show the answer
Even
What is 21,116 + 10?
Show the answer
21,126
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 21,116 in words?
21,116 is written "twenty-one thousand one hundred sixteen".
Is 21,116 a prime number?
No. 21,116 is a composite number, because it has more than two factors.
What are the factors of 21,116?
The factors of 21,116 are 1, 2, 4, 5,279, 10,558 and 21,116.