15,440 in words
15,440
fifteen thousand four hundred forty
15,440 is written fifteen thousand four hundred forty.
Ways to write it
- As an ordinal
- fifteen thousand four hundred fortieth
- Expanded form
- 10,000 + 5,000 + 400 + 40
Place value
| Place | Digit | Value |
|---|---|---|
| ten thousands | 1 | 10,000 |
| thousands | 5 | 5,000 |
| hundreds | 4 | 400 |
| tens | 4 | 40 |
| ones | 0 | 0 |
Number facts
- Even or odd
- Even
- Prime or composite
- Composite
- Factors
- 1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 193, 386, 772, 965, 1,544, 1,930, 3,088, 3,860, 7,720 and 15,440 (20 factors)
- First 10 multiples
- 15,440, 30,880, 46,320, 61,760, 77,200, 92,640, 108,080, 123,520, 138,960, 154,400
- Square
- 15,440 × 15,440 = 238,393,600
- Square root
- ≈ 124.26
- Sum of the digits
- 1 + 5 + 4 + 4 + 0 = 14
- Rounded to the nearest 10
- 15,440
- Rounded to the nearest 100
- 15,400
- Rounded to the nearest 1000
- 15,000
- Number before
- 15,439
- Number after
- 15,441
- In binary
11110001010000
Quick check
What number comes just after 15,440?
Show the answer
15,441
Is 15,440 even or odd?
Show the answer
Even
What is 15,440 + 10?
Show the answer
15,450
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 15,440 in words?
15,440 is written "fifteen thousand four hundred forty".
Is 15,440 a prime number?
No. 15,440 is a composite number, because it has more than two factors.
What are the factors of 15,440?
The factors of 15,440 are 1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 193, 386, 772, 965, 1,544, 1,930, 3,088, 3,860, 7,720 and 15,440.