47,721 in words
47,721
forty-seven thousand seven hundred and twenty-one
47,721 is written forty-seven thousand seven hundred and twenty-one.
Ways to write it
- As an ordinal
- forty-seven thousand seven hundred and twenty-first
- Expanded form
- 40,000 + 7,000 + 700 + 20 + 1
Place value
| Place | Digit | Value |
|---|---|---|
| ten thousands | 4 | 40,000 |
| thousands | 7 | 7,000 |
| hundreds | 7 | 700 |
| tens | 2 | 20 |
| ones | 1 | 1 |
Number facts
- Even or odd
- Odd
- Prime or composite
- Composite
- Factors
- 1, 3, 15,907 and 47,721 (4 factors)
- First 10 multiples
- 47,721, 95,442, 143,163, 190,884, 238,605, 286,326, 334,047, 381,768, 429,489, 477,210
- Square
- 47,721 × 47,721 = 2,277,293,841
- Square root
- ≈ 218.45
- Sum of the digits
- 4 + 7 + 7 + 2 + 1 = 21
- Rounded to the nearest 10
- 47,720
- Rounded to the nearest 100
- 47,700
- Rounded to the nearest 1000
- 48,000
- Number before
- 47,720
- Number after
- 47,722
- In binary
1011101001101001
Quick check
What number comes just after 47,721?
Show the answer
47,722
Is 47,721 even or odd?
Show the answer
Odd
What is 47,721 + 10?
Show the answer
47,731
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 47,721 in words?
47,721 is written "forty-seven thousand seven hundred and twenty-one".
Is 47,721 a prime number?
No. 47,721 is a composite number, because it has more than two factors.
What are the factors of 47,721?
The factors of 47,721 are 1, 3, 15,907 and 47,721.