427,821 in words
427,821
four hundred and twenty-seven thousand eight hundred and twenty-one
427,821 is written four hundred and twenty-seven thousand eight hundred and twenty-one.
Ways to write it
- As an ordinal
- four hundred and twenty-seven thousand eight hundred and twenty-first
- Expanded form
- 400,000 + 20,000 + 7,000 + 800 + 20 + 1
Place value
| Place | Digit | Value |
|---|---|---|
| hundred thousands | 4 | 400,000 |
| ten thousands | 2 | 20,000 |
| thousands | 7 | 7,000 |
| hundreds | 8 | 800 |
| tens | 2 | 20 |
| ones | 1 | 1 |
Number facts
- Even or odd
- Odd
- Prime or composite
- Composite
- Factors
- 1, 3, 142,607 and 427,821 (4 factors)
- First 10 multiples
- 427,821, 855,642, 1,283,463, 1,711,284, 2,139,105, 2,566,926, 2,994,747, 3,422,568, 3,850,389, 4,278,210
- Square
- 427,821 × 427,821 = 183,030,808,041
- Square root
- ≈ 654.08
- Sum of the digits
- 4 + 2 + 7 + 8 + 2 + 1 = 24
- Rounded to the nearest 10
- 427,820
- Rounded to the nearest 100
- 427,800
- Rounded to the nearest 1000
- 428,000
- Number before
- 427,820
- Number after
- 427,822
- In binary
1101000011100101101
Quick check
What number comes just after 427,821?
Show the answer
427,822
Is 427,821 even or odd?
Show the answer
Odd
What is 427,821 + 10?
Show the answer
427,831
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 427,821 in words?
427,821 is written "four hundred and twenty-seven thousand eight hundred and twenty-one".
Is 427,821 a prime number?
No. 427,821 is a composite number, because it has more than two factors.
What are the factors of 427,821?
The factors of 427,821 are 1, 3, 142,607 and 427,821.