11,421 in words
11,421
eleven thousand four hundred and twenty-one
11,421 is written eleven thousand four hundred and twenty-one.
Ways to write it
- As an ordinal
- eleven thousand four hundred and twenty-first
- Expanded form
- 10,000 + 1,000 + 400 + 20 + 1
Place value
| Place | Digit | Value |
|---|---|---|
| ten thousands | 1 | 10,000 |
| thousands | 1 | 1,000 |
| hundreds | 4 | 400 |
| tens | 2 | 20 |
| ones | 1 | 1 |
Number facts
- Even or odd
- Odd
- Prime or composite
- Composite
- Factors
- 1, 3, 9, 27, 47, 81, 141, 243, 423, 1,269, 3,807 and 11,421 (12 factors)
- First 10 multiples
- 11,421, 22,842, 34,263, 45,684, 57,105, 68,526, 79,947, 91,368, 102,789, 114,210
- Square
- 11,421 × 11,421 = 130,439,241
- Square root
- ≈ 106.87
- Sum of the digits
- 1 + 1 + 4 + 2 + 1 = 9
- Rounded to the nearest 10
- 11,420
- Rounded to the nearest 100
- 11,400
- Rounded to the nearest 1000
- 11,000
- Number before
- 11,420
- Number after
- 11,422
- In binary
10110010011101
Quick check
What number comes just after 11,421?
Show the answer
11,422
Is 11,421 even or odd?
Show the answer
Odd
What is 11,421 + 10?
Show the answer
11,431
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 11,421 in words?
11,421 is written "eleven thousand four hundred and twenty-one".
Is 11,421 a prime number?
No. 11,421 is a composite number, because it has more than two factors.
What are the factors of 11,421?
The factors of 11,421 are 1, 3, 9, 27, 47, 81, 141, 243, 423, 1,269, 3,807 and 11,421.