15,980 in words
15,980
fifteen thousand nine hundred eighty
15,980 is written fifteen thousand nine hundred eighty.
Ways to write it
- As an ordinal
- fifteen thousand nine hundred eightieth
- Expanded form
- 10,000 + 5,000 + 900 + 80
Place value
| Place | Digit | Value |
|---|---|---|
| ten thousands | 1 | 10,000 |
| thousands | 5 | 5,000 |
| hundreds | 9 | 900 |
| tens | 8 | 80 |
| ones | 0 | 0 |
Number facts
- Even or odd
- Even
- Prime or composite
- Composite
- Factors
- 1, 2, 4, 5, 10, 17, 20, 34, 47, 68, 85, 94, 170, 188, 235, 340, 470, 799, 940, 1,598, 3,196, 3,995, 7,990 and 15,980 (24 factors)
- First 10 multiples
- 15,980, 31,960, 47,940, 63,920, 79,900, 95,880, 111,860, 127,840, 143,820, 159,800
- Square
- 15,980 × 15,980 = 255,360,400
- Square root
- ≈ 126.41
- Sum of the digits
- 1 + 5 + 9 + 8 + 0 = 23
- Rounded to the nearest 10
- 15,980
- Rounded to the nearest 100
- 16,000
- Rounded to the nearest 1000
- 16,000
- Number before
- 15,979
- Number after
- 15,981
- In binary
11111001101100
Quick check
What number comes just after 15,980?
Show the answer
15,981
Is 15,980 even or odd?
Show the answer
Even
What is 15,980 + 10?
Show the answer
15,990
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 15,980 in words?
15,980 is written "fifteen thousand nine hundred eighty".
Is 15,980 a prime number?
No. 15,980 is a composite number, because it has more than two factors.
What are the factors of 15,980?
The factors of 15,980 are 1, 2, 4, 5, 10, 17, 20, 34, 47, 68, 85, 94, 170, 188, 235, 340, 470, 799, 940, 1,598, 3,196, 3,995, 7,990 and 15,980.