21,016 in words
21,016
twenty-one thousand and sixteen
21,016 is written twenty-one thousand and sixteen.
Ways to write it
- As an ordinal
- twenty-one thousand and sixteenth
- Expanded form
- 20,000 + 1,000 + 10 + 6
Place value
| Place | Digit | Value |
|---|---|---|
| ten thousands | 2 | 20,000 |
| thousands | 1 | 1,000 |
| hundreds | 0 | 0 |
| tens | 1 | 10 |
| ones | 6 | 6 |
Number facts
- Even or odd
- Even
- Prime or composite
- Composite
- Factors
- 1, 2, 4, 8, 37, 71, 74, 142, 148, 284, 296, 568, 2,627, 5,254, 10,508 and 21,016 (16 factors)
- First 10 multiples
- 21,016, 42,032, 63,048, 84,064, 105,080, 126,096, 147,112, 168,128, 189,144, 210,160
- Square
- 21,016 × 21,016 = 441,672,256
- Square root
- ≈ 144.97
- Sum of the digits
- 2 + 1 + 0 + 1 + 6 = 10
- Rounded to the nearest 10
- 21,020
- Rounded to the nearest 100
- 21,000
- Rounded to the nearest 1000
- 21,000
- Number before
- 21,015
- Number after
- 21,017
- In binary
101001000011000
Quick check
What number comes just after 21,016?
Show the answer
21,017
Is 21,016 even or odd?
Show the answer
Even
What is 21,016 + 10?
Show the answer
21,026
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 21,016 in words?
21,016 is written "twenty-one thousand and sixteen".
Is 21,016 a prime number?
No. 21,016 is a composite number, because it has more than two factors.
What are the factors of 21,016?
The factors of 21,016 are 1, 2, 4, 8, 37, 71, 74, 142, 148, 284, 296, 568, 2,627, 5,254, 10,508 and 21,016.