21,041 in words
21,041
twenty-one thousand forty-one
21,041 is written twenty-one thousand forty-one.
Ways to write it
- As an ordinal
- twenty-one thousand forty-first
- Expanded form
- 20,000 + 1,000 + 40 + 1
Place value
| Place | Digit | Value |
|---|---|---|
| ten thousands | 2 | 20,000 |
| thousands | 1 | 1,000 |
| hundreds | 0 | 0 |
| tens | 4 | 40 |
| ones | 1 | 1 |
Number facts
- Even or odd
- Odd
- Prime or composite
- Composite
- Factors
- 1, 53, 397 and 21,041 (4 factors)
- First 10 multiples
- 21,041, 42,082, 63,123, 84,164, 105,205, 126,246, 147,287, 168,328, 189,369, 210,410
- Square
- 21,041 × 21,041 = 442,723,681
- Square root
- ≈ 145.06
- Sum of the digits
- 2 + 1 + 0 + 4 + 1 = 8
- Rounded to the nearest 10
- 21,040
- Rounded to the nearest 100
- 21,000
- Rounded to the nearest 1000
- 21,000
- Number before
- 21,040
- Number after
- 21,042
- In binary
101001000110001
Quick check
What number comes just after 21,041?
Show the answer
21,042
Is 21,041 even or odd?
Show the answer
Odd
What is 21,041 + 10?
Show the answer
21,051
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 21,041 in words?
21,041 is written "twenty-one thousand forty-one".
Is 21,041 a prime number?
No. 21,041 is a composite number, because it has more than two factors.
What are the factors of 21,041?
The factors of 21,041 are 1, 53, 397 and 21,041.