16,640 in words
16,640
sixteen thousand six hundred and forty
16,640 is written sixteen thousand six hundred and forty.
Ways to write it
- As an ordinal
- sixteen thousand six hundred and fortieth
- Expanded form
- 10,000 + 6,000 + 600 + 40
Place value
| Place | Digit | Value |
|---|---|---|
| ten thousands | 1 | 10,000 |
| thousands | 6 | 6,000 |
| hundreds | 6 | 600 |
| tens | 4 | 40 |
| ones | 0 | 0 |
Number facts
- Even or odd
- Even
- Prime or composite
- Composite
- Factors
- 1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 256, 260, 320, 416, 520, 640, 832, 1,040, 1,280, 1,664, 2,080, 3,328, 4,160, 8,320 and 16,640 (36 factors)
- First 10 multiples
- 16,640, 33,280, 49,920, 66,560, 83,200, 99,840, 116,480, 133,120, 149,760, 166,400
- Square
- 16,640 × 16,640 = 276,889,600
- Square root
- ≈ 129.00
- Sum of the digits
- 1 + 6 + 6 + 4 + 0 = 17
- Rounded to the nearest 10
- 16,640
- Rounded to the nearest 100
- 16,600
- Rounded to the nearest 1000
- 17,000
- Number before
- 16,639
- Number after
- 16,641
- In binary
100000100000000
Quick check
What number comes just after 16,640?
Show the answer
16,641
Is 16,640 even or odd?
Show the answer
Even
What is 16,640 + 10?
Show the answer
16,650
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 16,640 in words?
16,640 is written "sixteen thousand six hundred and forty".
Is 16,640 a prime number?
No. 16,640 is a composite number, because it has more than two factors.
What are the factors of 16,640?
The factors of 16,640 are 1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 256, 260, 320, 416, 520, 640, 832, 1,040, 1,280, 1,664, 2,080, 3,328, 4,160, 8,320 and 16,640.