The number 40550
40550 is a composite number with 12 divisors. Its prime factorisation is 2 × × 811. Divisors (12): 1, 2, 5, 10, 25, 50, 811, 1622, 4055, 8110, 20275, 40550.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
40550 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
40550 is composite. Its prime factorisation is
- 3
The divisors add up to 75516; without 40550 itself that is 34966, so 40550 is deficient (34966 is less than 40550). Euler's totient φ(40550) = 16200 numbers up to 40550 share no factor with it.
- 4
The digits of 40550 add up to 14, and repeating that until one digit is left gives the digital root 5. The Collatz sequence (halve if even, else 3n+1) takes 36 steps to reach 1.
LaTeX source of the formulas on this page
\[ 40550 = 2 \times 5^{2} \times 811 \]40550 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 12 |
| Sum of divisors | 75516 |
| Euler totient φ(n) | 16200 |
| Square | 1644302500 |
| Cube | 66676466375000 |
| Square root | 201.370306 (= 5√1622) |
| Digit sum / digital root | 14 / 5 |
| Collatz steps to 1 | 36 |
| Scientific notation | 4.055 × |
40550 in other forms
| Form | Value |
|---|---|
| In words | forty thousand five hundred and fifty |
| Binary (base 2) | 1001111001100110 |
| Octal (base 8) | 117146 |
| Hexadecimal (base 16) | 9E66 |
| Base 3 | 2001121212 |
| As time | 40550 seconds = 11 h 15 min 50 s |
Is 40550 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (40550 ÷ 2 = 20275) | 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 (40550 ÷ 5 = 8110) | 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 6) | 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 5) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | Yes (40550 ÷ 10 = 4055) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 4) | 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 40550 a prime number?
No. 40550 = 2 × × 811, so it is divisible by 2.
What are the factors of 40550?
1, 2, 5, 10, 25, 50, 811, 1622, 4055, 8110, 20275, 40550.
What is 40550 in binary?
1001111001100110 (hexadecimal 9E66, octal 117146).
What is the square root of 40550?
About 201.3703, exactly 5√1622.
Is 40550 divisible by 3?
No. Its digits add up to 14, which is not a multiple of 3.
What is special about the number 40550?
It is a composite number with 12 divisors.