The number 76550
76550 is a composite number with 12 divisors. Its prime factorisation is 2 × × 1531. Divisors (12): 1, 2, 5, 10, 25, 50, 1531, 3062, 7655, 15310, 38275, 76550.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
76550 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
76550 is composite. Its prime factorisation is
- 3
The divisors add up to 142476; without 76550 itself that is 65926, so 76550 is deficient (65926 is less than 76550). Euler's totient φ(76550) = 30600 numbers up to 76550 share no factor with it.
- 4
The digits of 76550 add up to 23, and repeating that until one digit is left gives the digital root 5. The Collatz sequence (halve if even, else 3n+1) takes 125 steps to reach 1.
LaTeX source of the formulas on this page
\[ 76550 = 2 \times 5^{2} \times 1531 \]76550 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 12 |
| Sum of divisors | 142476 |
| Euler totient φ(n) | 30600 |
| Square | 5859902500 |
| Cube | 448575536375000 |
| Square root | 276.676707 (= 5√3062) |
| Digit sum / digital root | 23 / 5 |
| Collatz steps to 1 | 125 |
| Scientific notation | 7.655 × |
76550 in other forms
| Form | Value |
|---|---|
| In words | seventy-six thousand five hundred and fifty |
| Binary (base 2) | 10010101100000110 |
| Octal (base 8) | 225406 |
| Hexadecimal (base 16) | 12B06 |
| Base 3 | 10220000012 |
| As time | 76550 seconds = 21 h 15 min 50 s |
Is 76550 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (76550 ÷ 2 = 38275) | 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 (76550 ÷ 5 = 15310) | 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 5) | 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 (76550 ÷ 10 = 7655) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 1) | 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 76550 a prime number?
No. 76550 = 2 × × 1531, so it is divisible by 2.
What are the factors of 76550?
1, 2, 5, 10, 25, 50, 1531, 3062, 7655, 15310, 38275, 76550.
What is 76550 in binary?
10010101100000110 (hexadecimal 12B06, octal 225406).
What is the square root of 76550?
About 276.6767, exactly 5√3062.
Is 76550 divisible by 3?
No. Its digits add up to 23, which is not a multiple of 3.
What is special about the number 76550?
It is a composite number with 12 divisors.