13,021 in words
13,021
thirteen thousand and twenty-one
13,021 is written thirteen thousand and twenty-one.
Ways to write it
- As an ordinal
- thirteen thousand and twenty-first
- Expanded form
- 10,000 + 3,000 + 20 + 1
Place value
| Place | Digit | Value |
|---|---|---|
| ten thousands | 1 | 10,000 |
| thousands | 3 | 3,000 |
| hundreds | 0 | 0 |
| tens | 2 | 20 |
| ones | 1 | 1 |
Number facts
- Even or odd
- Odd
- Prime or composite
- Composite
- Factors
- 1, 29, 449 and 13,021 (4 factors)
- First 10 multiples
- 13,021, 26,042, 39,063, 52,084, 65,105, 78,126, 91,147, 104,168, 117,189, 130,210
- Square
- 13,021 × 13,021 = 169,546,441
- Square root
- ≈ 114.11
- Sum of the digits
- 1 + 3 + 0 + 2 + 1 = 7
- Rounded to the nearest 10
- 13,020
- Rounded to the nearest 100
- 13,000
- Rounded to the nearest 1000
- 13,000
- Number before
- 13,020
- Number after
- 13,022
- In binary
11001011011101
Quick check
What number comes just after 13,021?
Show the answer
13,022
Is 13,021 even or odd?
Show the answer
Odd
What is 13,021 + 10?
Show the answer
13,031
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 13,021 in words?
13,021 is written "thirteen thousand and twenty-one".
Is 13,021 a prime number?
No. 13,021 is a composite number, because it has more than two factors.
What are the factors of 13,021?
The factors of 13,021 are 1, 29, 449 and 13,021.