12,990 in words
12,990
twelve thousand nine hundred ninety
12,990 is written twelve thousand nine hundred ninety.
Ways to write it
- As an ordinal
- twelve thousand nine hundred ninetieth
- Expanded form
- 10,000 + 2,000 + 900 + 90
Place value
| Place | Digit | Value |
|---|---|---|
| ten thousands | 1 | 10,000 |
| thousands | 2 | 2,000 |
| hundreds | 9 | 900 |
| tens | 9 | 90 |
| ones | 0 | 0 |
Number facts
- Even or odd
- Even
- Prime or composite
- Composite
- Factors
- 1, 2, 3, 5, 6, 10, 15, 30, 433, 866, 1,299, 2,165, 2,598, 4,330, 6,495 and 12,990 (16 factors)
- First 10 multiples
- 12,990, 25,980, 38,970, 51,960, 64,950, 77,940, 90,930, 103,920, 116,910, 129,900
- Square
- 12,990 × 12,990 = 168,740,100
- Square root
- ≈ 113.97
- Sum of the digits
- 1 + 2 + 9 + 9 + 0 = 21
- Rounded to the nearest 10
- 12,990
- Rounded to the nearest 100
- 13,000
- Rounded to the nearest 1000
- 13,000
- Number before
- 12,989
- Number after
- 12,991
- In binary
11001010111110
Quick check
What number comes just after 12,990?
Show the answer
12,991
Is 12,990 even or odd?
Show the answer
Even
What is 12,990 + 10?
Show the answer
13,000
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 12,990 in words?
12,990 is written "twelve thousand nine hundred ninety".
Is 12,990 a prime number?
No. 12,990 is a composite number, because it has more than two factors.
What are the factors of 12,990?
The factors of 12,990 are 1, 2, 3, 5, 6, 10, 15, 30, 433, 866, 1,299, 2,165, 2,598, 4,330, 6,495 and 12,990.