18,001 in words
18,001
eighteen thousand one
18,001 is written eighteen thousand one.
Ways to write it
- As an ordinal
- eighteen thousand first
- Expanded form
- 10,000 + 8,000 + 1
Place value
| Place | Digit | Value |
|---|---|---|
| ten thousands | 1 | 10,000 |
| thousands | 8 | 8,000 |
| hundreds | 0 | 0 |
| tens | 0 | 0 |
| ones | 1 | 1 |
Number facts
- Even or odd
- Odd
- Prime or composite
- Composite
- Factors
- 1, 47, 383 and 18,001 (4 factors)
- First 10 multiples
- 18,001, 36,002, 54,003, 72,004, 90,005, 108,006, 126,007, 144,008, 162,009, 180,010
- Square
- 18,001 × 18,001 = 324,036,001
- Square root
- ≈ 134.17
- Sum of the digits
- 1 + 8 + 0 + 0 + 1 = 10
- Rounded to the nearest 10
- 18,000
- Rounded to the nearest 100
- 18,000
- Rounded to the nearest 1000
- 18,000
- Number before
- 18,000
- Number after
- 18,002
- In binary
100011001010001
Quick check
What number comes just after 18,001?
Show the answer
18,002
Is 18,001 even or odd?
Show the answer
Odd
What is 18,001 + 10?
Show the answer
18,011
Practice 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 18,001 in words?
18,001 is written "eighteen thousand one".
Is 18,001 a prime number?
No. 18,001 is a composite number, because it has more than two factors.
What are the factors of 18,001?
The factors of 18,001 are 1, 47, 383 and 18,001.