213,721 in words
213,721
two hundred and thirteen thousand seven hundred and twenty-one
213,721 is written two hundred and thirteen thousand seven hundred and twenty-one.
Ways to write it
- As an ordinal
- two hundred and thirteen thousand seven hundred and twenty-first
- Expanded form
- 200,000 + 10,000 + 3,000 + 700 + 20 + 1
Place value
| Place | Digit | Value |
|---|---|---|
| hundred thousands | 2 | 200,000 |
| ten thousands | 1 | 10,000 |
| thousands | 3 | 3,000 |
| hundreds | 7 | 700 |
| tens | 2 | 20 |
| ones | 1 | 1 |
Number facts
- Even or odd
- Odd
- Prime or composite
- Prime
- Factors
- 1 and 213,721 (2 factors)
- First 10 multiples
- 213,721, 427,442, 641,163, 854,884, 1,068,605, 1,282,326, 1,496,047, 1,709,768, 1,923,489, 2,137,210
- Square
- 213,721 × 213,721 = 45,676,665,841
- Square root
- ≈ 462.30
- Sum of the digits
- 2 + 1 + 3 + 7 + 2 + 1 = 16
- Rounded to the nearest 10
- 213,720
- Rounded to the nearest 100
- 213,700
- Rounded to the nearest 1000
- 214,000
- Number before
- 213,720
- Number after
- 213,722
- In binary
110100001011011001
Quick check
What number comes just after 213,721?
Show the answer
213,722
Is 213,721 even or odd?
Show the answer
Odd
What is 213,721 + 10?
Show the answer
213,731
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 213,721 in words?
213,721 is written "two hundred and thirteen thousand seven hundred and twenty-one".
Is 213,721 a prime number?
Yes. 213,721 is a prime number: its only factors are 1 and 213,721.
What are the factors of 213,721?
The factors of 213,721 are 1 and 213,721.