16,021 in words
16,021
sixteen thousand and twenty-one
16,021 is written sixteen thousand and twenty-one.
Ways to write it
- As an ordinal
- sixteen thousand and twenty-first
- Expanded form
- 10,000 + 6,000 + 20 + 1
Place value
| Place | Digit | Value |
|---|---|---|
| ten thousands | 1 | 10,000 |
| thousands | 6 | 6,000 |
| hundreds | 0 | 0 |
| tens | 2 | 20 |
| ones | 1 | 1 |
Number facts
- Even or odd
- Odd
- Prime or composite
- Composite
- Factors
- 1, 37, 433 and 16,021 (4 factors)
- First 10 multiples
- 16,021, 32,042, 48,063, 64,084, 80,105, 96,126, 112,147, 128,168, 144,189, 160,210
- Square
- 16,021 × 16,021 = 256,672,441
- Square root
- ≈ 126.57
- Sum of the digits
- 1 + 6 + 0 + 2 + 1 = 10
- Rounded to the nearest 10
- 16,020
- Rounded to the nearest 100
- 16,000
- Rounded to the nearest 1000
- 16,000
- Number before
- 16,020
- Number after
- 16,022
- In binary
11111010010101
Quick check
What number comes just after 16,021?
Show the answer
16,022
Is 16,021 even or odd?
Show the answer
Odd
What is 16,021 + 10?
Show the answer
16,031
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 16,021 in words?
16,021 is written "sixteen thousand and twenty-one".
Is 16,021 a prime number?
No. 16,021 is a composite number, because it has more than two factors.
What are the factors of 16,021?
The factors of 16,021 are 1, 37, 433 and 16,021.