The number 55727
55727 is a composite number with 8 divisors. Its prime factorisation is 7 × 19 × 419. Divisors (8): 1, 7, 19, 133, 419, 2933, 7961, 55727.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
55727 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
55727 is composite. Its prime factorisation is
- 3
The divisors add up to 67200; without 55727 itself that is 11473, so 55727 is deficient (11473 is less than 55727). Euler's totient φ(55727) = 45144 numbers up to 55727 share no factor with it.
- 4
The digits of 55727 add up to 26, and repeating that until one digit is left gives the digital root 8. The Collatz sequence (halve if even, else 3n+1) takes 65 steps to reach 1.
LaTeX source of the formulas on this page
\[ 55727 = 7 \times 19 \times 419 \]
55727 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 8 |
| Sum of divisors | 67200 |
| Euler totient φ(n) | 45144 |
| Square | 3105498529 |
| Cube | 173060116525583 |
| Square root | 236.065669 |
| Digit sum / digital root | 26 / 8 |
| Collatz steps to 1 | 65 |
| Scientific notation | 5.5727 × |
55727 in other forms
| Form | Value |
|---|---|
| In words | fifty-five thousand seven hundred and twenty-seven |
| Binary (base 2) | 1101100110101111 |
| Octal (base 8) | 154657 |
| Hexadecimal (base 16) | D9AF |
| Base 3 | 2211102222 |
| As time | 55727 seconds = 15 h 28 min 47 s |
Is 55727 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | No (remainder 1) | 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 3) | A number is divisible by 4 if the last two digits make a multiple of 4. |
| 5 | No (remainder 2) | A number is divisible by 5 if the last digit is 0 or 5. |
| 6 | No (remainder 5) | A number is divisible by 6 if it is divisible by both 2 and 3. |
| 7 | Yes (55727 ÷ 7 = 7961) | 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 7) | 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 | No (remainder 7) | 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 11) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 55727 a prime number?
No. 55727 = 7 × 19 × 419, so it is divisible by 7.
What are the factors of 55727?
1, 7, 19, 133, 419, 2933, 7961, 55727.
What is 55727 in binary?
1101100110101111 (hexadecimal D9AF, octal 154657).
What is the square root of 55727?
About 236.0657.
Is 55727 divisible by 3?
No. Its digits add up to 26, which is not a multiple of 3.
What is special about the number 55727?
It is a composite number with 8 divisors.