421,671 in words
421,671
four hundred twenty-one thousand six hundred seventy-one
421,671 is written four hundred twenty-one thousand six hundred seventy-one.
Ways to write it
- As an ordinal
- four hundred twenty-one thousand six hundred seventy-first
- Expanded form
- 400,000 + 20,000 + 1,000 + 600 + 70 + 1
Place value
| Place | Digit | Value |
|---|---|---|
| hundred thousands | 4 | 400,000 |
| ten thousands | 2 | 20,000 |
| thousands | 1 | 1,000 |
| hundreds | 6 | 600 |
| tens | 7 | 70 |
| ones | 1 | 1 |
Number facts
- Even or odd
- Odd
- Prime or composite
- Composite
- Factors
- 1, 3, 140,557 and 421,671 (4 factors)
- First 10 multiples
- 421,671, 843,342, 1,265,013, 1,686,684, 2,108,355, 2,530,026, 2,951,697, 3,373,368, 3,795,039, 4,216,710
- Square
- 421,671 × 421,671 = 177,806,432,241
- Square root
- ≈ 649.36
- Sum of the digits
- 4 + 2 + 1 + 6 + 7 + 1 = 21
- Rounded to the nearest 10
- 421,670
- Rounded to the nearest 100
- 421,700
- Rounded to the nearest 1000
- 422,000
- Number before
- 421,670
- Number after
- 421,672
- In binary
1100110111100100111
Quick check
What number comes just after 421,671?
Show the answer
421,672
Is 421,671 even or odd?
Show the answer
Odd
What is 421,671 + 10?
Show the answer
421,681
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 421,671 in words?
421,671 is written "four hundred twenty-one thousand six hundred seventy-one".
Is 421,671 a prime number?
No. 421,671 is a composite number, because it has more than two factors.
What are the factors of 421,671?
The factors of 421,671 are 1, 3, 140,557 and 421,671.