21,316 in words
21,316
twenty-one thousand three hundred sixteen
21,316 is written twenty-one thousand three hundred sixteen.
Ways to write it
- As an ordinal
- twenty-one thousand three hundred sixteenth
- Expanded form
- 20,000 + 1,000 + 300 + 10 + 6
Place value
| Place | Digit | Value |
|---|---|---|
| ten thousands | 2 | 20,000 |
| thousands | 1 | 1,000 |
| hundreds | 3 | 300 |
| tens | 1 | 10 |
| ones | 6 | 6 |
Number facts
- Even or odd
- Even
- Prime or composite
- Composite
- Factors
- 1, 2, 4, 73, 146, 292, 5,329, 10,658 and 21,316 (9 factors)
- First 10 multiples
- 21,316, 42,632, 63,948, 85,264, 106,580, 127,896, 149,212, 170,528, 191,844, 213,160
- Square
- 21,316 × 21,316 = 454,371,856
- Square root
- 146
- Sum of the digits
- 2 + 1 + 3 + 1 + 6 = 13
- Rounded to the nearest 10
- 21,320
- Rounded to the nearest 100
- 21,300
- Rounded to the nearest 1000
- 21,000
- Number before
- 21,315
- Number after
- 21,317
- In binary
101001101000100
Quick check
What number comes just after 21,316?
Show the answer
21,317
Is 21,316 even or odd?
Show the answer
Even
What is 21,316 + 10?
Show the answer
21,326
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 21,316 in words?
21,316 is written "twenty-one thousand three hundred sixteen".
Is 21,316 a prime number?
No. 21,316 is a composite number, because it has more than two factors.
What are the factors of 21,316?
The factors of 21,316 are 1, 2, 4, 73, 146, 292, 5,329, 10,658 and 21,316.