998,421 in words
998,421
nine hundred and ninety-eight thousand four hundred and twenty-one
998,421 is written nine hundred and ninety-eight thousand four hundred and twenty-one.
Ways to write it
- As an ordinal
- nine hundred and ninety-eight thousand four hundred and twenty-first
- Expanded form
- 900,000 + 90,000 + 8,000 + 400 + 20 + 1
Place value
| Place | Digit | Value |
|---|---|---|
| hundred thousands | 9 | 900,000 |
| ten thousands | 9 | 90,000 |
| thousands | 8 | 8,000 |
| hundreds | 4 | 400 |
| tens | 2 | 20 |
| ones | 1 | 1 |
Number facts
- Even or odd
- Odd
- Prime or composite
- Composite
- Factors
- 1, 3, 47, 73, 97, 141, 219, 291, 3,431, 4,559, 7,081, 10,293, 13,677, 21,243, 332,807 and 998,421 (16 factors)
- First 10 multiples
- 998,421, 1,996,842, 2,995,263, 3,993,684, 4,992,105, 5,990,526, 6,988,947, 7,987,368, 8,985,789, 9,984,210
- Square
- 998,421 × 998,421 = 996,844,493,241
- Square root
- ≈ 999.21
- Sum of the digits
- 9 + 9 + 8 + 4 + 2 + 1 = 33
- Rounded to the nearest 10
- 998,420
- Rounded to the nearest 100
- 998,400
- Rounded to the nearest 1000
- 998,000
- Number before
- 998,420
- Number after
- 998,422
- In binary
11110011110000010101
Quick check
What number comes just after 998,421?
Show the answer
998,422
Is 998,421 even or odd?
Show the answer
Odd
What is 998,421 + 10?
Show the answer
998,431
Practise with a game
Factors, Multiples & Primes
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Number Patterns
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How do you write 998,421 in words?
998,421 is written "nine hundred and ninety-eight thousand four hundred and twenty-one".
Is 998,421 a prime number?
No. 998,421 is a composite number, because it has more than two factors.
What are the factors of 998,421?
The factors of 998,421 are 1, 3, 47, 73, 97, 141, 219, 291, 3,431, 4,559, 7,081, 10,293, 13,677, 21,243, 332,807 and 998,421.