21,104 in words
21,104
twenty-one thousand one hundred four
21,104 is written twenty-one thousand one hundred four.
Ways to write it
- As an ordinal
- twenty-one thousand one hundred fourth
- Expanded form
- 20,000 + 1,000 + 100 + 4
Place value
| Place | Digit | Value |
|---|---|---|
| ten thousands | 2 | 20,000 |
| thousands | 1 | 1,000 |
| hundreds | 1 | 100 |
| tens | 0 | 0 |
| ones | 4 | 4 |
Number facts
- Even or odd
- Even
- Prime or composite
- Composite
- Factors
- 1, 2, 4, 8, 16, 1,319, 2,638, 5,276, 10,552 and 21,104 (10 factors)
- First 10 multiples
- 21,104, 42,208, 63,312, 84,416, 105,520, 126,624, 147,728, 168,832, 189,936, 211,040
- Square
- 21,104 × 21,104 = 445,378,816
- Square root
- ≈ 145.27
- Sum of the digits
- 2 + 1 + 1 + 0 + 4 = 8
- Rounded to the nearest 10
- 21,100
- Rounded to the nearest 100
- 21,100
- Rounded to the nearest 1000
- 21,000
- Number before
- 21,103
- Number after
- 21,105
- In binary
101001001110000
Quick check
What number comes just after 21,104?
Show the answer
21,105
Is 21,104 even or odd?
Show the answer
Even
What is 21,104 + 10?
Show the answer
21,114
Practice 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 21,104 in words?
21,104 is written "twenty-one thousand one hundred four".
Is 21,104 a prime number?
No. 21,104 is a composite number, because it has more than two factors.
What are the factors of 21,104?
The factors of 21,104 are 1, 2, 4, 8, 16, 1,319, 2,638, 5,276, 10,552 and 21,104.