1,00,821 in words
1,00,821
one lakh eight hundred and twenty-one
1,00,821 is written one lakh eight hundred and twenty-one.
Ways to write it
- International system
- one hundred thousand eight hundred and twenty-one
- Indian system
- one lakh eight hundred and twenty-one
- As an ordinal
- one lakh eight hundred and twenty-first
- Expanded form
- 1,00,000 + 800 + 20 + 1
Place value
| Place | Digit | Value |
|---|---|---|
| lakhs | 1 | 1,00,000 |
| ten thousands | 0 | 0 |
| thousands | 0 | 0 |
| hundreds | 8 | 800 |
| tens | 2 | 20 |
| ones | 1 | 1 |
Number facts
- Even or odd
- Odd
- Prime or composite
- Composite
- Factors
- 1, 3, 7, 21, 4,801, 14,403, 33,607 and 1,00,821 (8 factors)
- First 10 multiples
- 1,00,821, 2,01,642, 3,02,463, 4,03,284, 5,04,105, 6,04,926, 7,05,747, 8,06,568, 9,07,389, 10,08,210
- Square
- 1,00,821 × 1,00,821 = 10,16,48,74,041
- Square root
- ≈ 317.52
- Sum of the digits
- 1 + 0 + 0 + 8 + 2 + 1 = 12
- Rounded to the nearest 10
- 1,00,820
- Rounded to the nearest 100
- 1,00,800
- Rounded to the nearest 1000
- 1,01,000
- Number before
- 1,00,820
- Number after
- 1,00,822
- In binary
11000100111010101
Quick check
What number comes just after 1,00,821?
Show the answer
1,00,822
Is 1,00,821 even or odd?
Show the answer
Odd
What is 1,00,821 + 10?
Show the answer
1,00,831
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 1,00,821 in words?
1,00,821 is written "one lakh eight hundred and twenty-one".
Is 1,00,821 a prime number?
No. 1,00,821 is a composite number, because it has more than two factors.
What are the factors of 1,00,821?
The factors of 1,00,821 are 1, 3, 7, 21, 4,801, 14,403, 33,607 and 1,00,821.