21,160 in words
21,160
twenty-one thousand one hundred sixty
21,160 is written twenty-one thousand one hundred sixty.
Ways to write it
- As an ordinal
- twenty-one thousand one hundred sixtieth
- Expanded form
- 20,000 + 1,000 + 100 + 60
Place value
| Place | Digit | Value |
|---|---|---|
| ten thousands | 2 | 20,000 |
| thousands | 1 | 1,000 |
| hundreds | 1 | 100 |
| tens | 6 | 60 |
| ones | 0 | 0 |
Number facts
- Even or odd
- Even
- Prime or composite
- Composite
- Factors
- 1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 529, 920, 1,058, 2,116, 2,645, 4,232, 5,290, 10,580 and 21,160 (24 factors)
- First 10 multiples
- 21,160, 42,320, 63,480, 84,640, 105,800, 126,960, 148,120, 169,280, 190,440, 211,600
- Square
- 21,160 × 21,160 = 447,745,600
- Square root
- ≈ 145.46
- Sum of the digits
- 2 + 1 + 1 + 6 + 0 = 10
- Rounded to the nearest 10
- 21,160
- Rounded to the nearest 100
- 21,200
- Rounded to the nearest 1000
- 21,000
- Number before
- 21,159
- Number after
- 21,161
- In binary
101001010101000
Quick check
What number comes just after 21,160?
Show the answer
21,161
Is 21,160 even or odd?
Show the answer
Even
What is 21,160 + 10?
Show the answer
21,170
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 21,160 in words?
21,160 is written "twenty-one thousand one hundred sixty".
Is 21,160 a prime number?
No. 21,160 is a composite number, because it has more than two factors.
What are the factors of 21,160?
The factors of 21,160 are 1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 529, 920, 1,058, 2,116, 2,645, 4,232, 5,290, 10,580 and 21,160.