The number 16550
16550 is a composite number with 12 divisors. Its prime factorisation is 2 × × 331. Divisors (12): 1, 2, 5, 10, 25, 50, 331, 662, 1655, 3310, 8275, 16550.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
16550 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
16550 is composite. Its prime factorisation is
- 3
The divisors add up to 30876; without 16550 itself that is 14326, so 16550 is deficient (14326 is less than 16550). Euler's totient φ(16550) = 6600 numbers up to 16550 share no factor with it.
- 4
The digits of 16550 add up to 17, and repeating that until one digit is left gives the digital root 8. The Collatz sequence (halve if even, else 3n+1) takes 97 steps to reach 1.
LaTeX source of the formulas on this page
\[ 16550 = 2 \times 5^{2} \times 331 \]16550 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 12 |
| Sum of divisors | 30876 |
| Euler totient φ(n) | 6600 |
| Square | 273902500 |
| Cube | 4533086375000 |
| Square root | 128.646803 (= 5√662) |
| Digit sum / digital root | 17 / 8 |
| Collatz steps to 1 | 97 |
| Scientific notation | 1.655 × |
16550 in other forms
| Form | Value |
|---|---|
| In words | sixteen thousand five hundred and fifty |
| Binary (base 2) | 100000010100110 |
| Octal (base 8) | 40246 |
| Hexadecimal (base 16) | 40A6 |
| Base 3 | 211200222 |
| As time | 16550 seconds = 4 h 35 min 50 s |
Is 16550 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (16550 ÷ 2 = 8275) | A number is divisible by 2 if the last digit is even (0, 2, 4, 6, 8). |
| 3 | No (remainder 2) | A number is divisible by 3 if the digits add up to a multiple of 3. |
| 4 | No (remainder 2) | A number is divisible by 4 if the last two digits make a multiple of 4. |
| 5 | Yes (16550 ÷ 5 = 3310) | A number is divisible by 5 if the last digit is 0 or 5. |
| 6 | No (remainder 2) | A number is divisible by 6 if it is divisible by both 2 and 3. |
| 7 | No (remainder 2) | A number is divisible by 7 if double the last digit and subtract it from the rest: the result is a multiple of 7. |
| 8 | No (remainder 6) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 8) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | Yes (16550 ÷ 10 = 1655) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 6) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 2) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 16550 a prime number?
No. 16550 = 2 × × 331, so it is divisible by 2.
What are the factors of 16550?
1, 2, 5, 10, 25, 50, 331, 662, 1655, 3310, 8275, 16550.
What is 16550 in binary?
100000010100110 (hexadecimal 40A6, octal 40246).
What is the square root of 16550?
About 128.6468, exactly 5√662.
Is 16550 divisible by 3?
No. Its digits add up to 17, which is not a multiple of 3.
What is special about the number 16550?
It is a composite number with 12 divisors.