4,20,721 in words
4,20,721
four lakh twenty thousand seven hundred and twenty-one
4,20,721 is written four lakh twenty thousand seven hundred and twenty-one.
Ways to write it
- International system
- four hundred and twenty thousand seven hundred and twenty-one
- Indian system
- four lakh twenty thousand seven hundred and twenty-one
- As an ordinal
- four lakh twenty thousand seven hundred and twenty-first
- Expanded form
- 4,00,000 + 20,000 + 700 + 20 + 1
Place value
| Place | Digit | Value |
|---|---|---|
| lakhs | 4 | 4,00,000 |
| ten thousands | 2 | 20,000 |
| thousands | 0 | 0 |
| hundreds | 7 | 700 |
| tens | 2 | 20 |
| ones | 1 | 1 |
Number facts
- Even or odd
- Odd
- Prime or composite
- Composite
- Factors
- 1, 7, 60,103 and 4,20,721 (4 factors)
- First 10 multiples
- 4,20,721, 8,41,442, 12,62,163, 16,82,884, 21,03,605, 25,24,326, 29,45,047, 33,65,768, 37,86,489, 42,07,210
- Square
- 4,20,721 × 4,20,721 = 1,77,00,61,59,841
- Square root
- ≈ 648.63
- Sum of the digits
- 4 + 2 + 0 + 7 + 2 + 1 = 16
- Rounded to the nearest 10
- 4,20,720
- Rounded to the nearest 100
- 4,20,700
- Rounded to the nearest 1000
- 4,21,000
- Number before
- 4,20,720
- Number after
- 4,20,722
- In binary
1100110101101110001
Quick check
What number comes just after 4,20,721?
Show the answer
4,20,722
Is 4,20,721 even or odd?
Show the answer
Odd
What is 4,20,721 + 10?
Show the answer
4,20,731
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 4,20,721 in words?
4,20,721 is written "four lakh twenty thousand seven hundred and twenty-one".
Is 4,20,721 a prime number?
No. 4,20,721 is a composite number, because it has more than two factors.
What are the factors of 4,20,721?
The factors of 4,20,721 are 1, 7, 60,103 and 4,20,721.