420,421 in words
420,421
four hundred and twenty thousand four hundred and twenty-one
420,421 is written four hundred and twenty thousand four hundred and twenty-one.
Ways to write it
- As an ordinal
- four hundred and twenty thousand four hundred and twenty-first
- Expanded form
- 400,000 + 20,000 + 400 + 20 + 1
Place value
| Place | Digit | Value |
|---|---|---|
| hundred thousands | 4 | 400,000 |
| ten thousands | 2 | 20,000 |
| thousands | 0 | 0 |
| hundreds | 4 | 400 |
| tens | 2 | 20 |
| ones | 1 | 1 |
Number facts
- Even or odd
- Odd
- Prime or composite
- Prime
- Factors
- 1 and 420,421 (2 factors)
- First 10 multiples
- 420,421, 840,842, 1,261,263, 1,681,684, 2,102,105, 2,522,526, 2,942,947, 3,363,368, 3,783,789, 4,204,210
- Square
- 420,421 × 420,421 = 176,753,817,241
- Square root
- ≈ 648.40
- Sum of the digits
- 4 + 2 + 0 + 4 + 2 + 1 = 13
- Rounded to the nearest 10
- 420,420
- Rounded to the nearest 100
- 420,400
- Rounded to the nearest 1000
- 420,000
- Number before
- 420,420
- Number after
- 420,422
- In binary
1100110101001000101
Quick check
What number comes just after 420,421?
Show the answer
420,422
Is 420,421 even or odd?
Show the answer
Odd
What is 420,421 + 10?
Show the answer
420,431
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 420,421 in words?
420,421 is written "four hundred and twenty thousand four hundred and twenty-one".
Is 420,421 a prime number?
Yes. 420,421 is a prime number: its only factors are 1 and 420,421.
What are the factors of 420,421?
The factors of 420,421 are 1 and 420,421.