42,521 in words
42,521
forty-two thousand five hundred and twenty-one
42,521 is written forty-two thousand five hundred and twenty-one.
Ways to write it
- As an ordinal
- forty-two thousand five hundred and twenty-first
- Expanded form
- 40,000 + 2,000 + 500 + 20 + 1
Place value
| Place | Digit | Value |
|---|---|---|
| ten thousands | 4 | 40,000 |
| thousands | 2 | 2,000 |
| hundreds | 5 | 500 |
| tens | 2 | 20 |
| ones | 1 | 1 |
Number facts
- Even or odd
- Odd
- Prime or composite
- Composite
- Factors
- 1, 101, 421 and 42,521 (4 factors)
- First 10 multiples
- 42,521, 85,042, 127,563, 170,084, 212,605, 255,126, 297,647, 340,168, 382,689, 425,210
- Square
- 42,521 × 42,521 = 1,808,035,441
- Square root
- ≈ 206.21
- Sum of the digits
- 4 + 2 + 5 + 2 + 1 = 14
- Rounded to the nearest 10
- 42,520
- Rounded to the nearest 100
- 42,500
- Rounded to the nearest 1000
- 43,000
- Number before
- 42,520
- Number after
- 42,522
- In binary
1010011000011001
Quick check
What number comes just after 42,521?
Show the answer
42,522
Is 42,521 even or odd?
Show the answer
Odd
What is 42,521 + 10?
Show the answer
42,531
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 42,521 in words?
42,521 is written "forty-two thousand five hundred and twenty-one".
Is 42,521 a prime number?
No. 42,521 is a composite number, because it has more than two factors.
What are the factors of 42,521?
The factors of 42,521 are 1, 101, 421 and 42,521.