30,021 in words
30,021
thirty thousand and twenty-one
30,021 is written thirty thousand and twenty-one.
Ways to write it
- As an ordinal
- thirty thousand and twenty-first
- Expanded form
- 30,000 + 20 + 1
Place value
| Place | Digit | Value |
|---|---|---|
| ten thousands | 3 | 30,000 |
| thousands | 0 | 0 |
| hundreds | 0 | 0 |
| tens | 2 | 20 |
| ones | 1 | 1 |
Number facts
- Even or odd
- Odd
- Prime or composite
- Composite
- Factors
- 1, 3, 10,007 and 30,021 (4 factors)
- First 10 multiples
- 30,021, 60,042, 90,063, 120,084, 150,105, 180,126, 210,147, 240,168, 270,189, 300,210
- Square
- 30,021 × 30,021 = 901,260,441
- Square root
- ≈ 173.27
- Sum of the digits
- 3 + 0 + 0 + 2 + 1 = 6
- Rounded to the nearest 10
- 30,020
- Rounded to the nearest 100
- 30,000
- Rounded to the nearest 1000
- 30,000
- Number before
- 30,020
- Number after
- 30,022
- In binary
111010101000101
Quick check
What number comes just after 30,021?
Show the answer
30,022
Is 30,021 even or odd?
Show the answer
Odd
What is 30,021 + 10?
Show the answer
30,031
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 30,021 in words?
30,021 is written "thirty thousand and twenty-one".
Is 30,021 a prime number?
No. 30,021 is a composite number, because it has more than two factors.
What are the factors of 30,021?
The factors of 30,021 are 1, 3, 10,007 and 30,021.