The number 55708
55708 is a composite number with 12 divisors. Its prime factorisation is × 19 × 733. Divisors (12): 1, 2, 4, 19, 38, 76, 733, 1466, 2932, 13927, 27854, 55708.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
55708 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
55708 is composite. Its prime factorisation is
- 3
The divisors add up to 102760; without 55708 itself that is 47052, so 55708 is deficient (47052 is less than 55708). Euler's totient φ(55708) = 26352 numbers up to 55708 share no factor with it.
- 4
The digits of 55708 add up to 25, and repeating that until one digit is left gives the digital root 7. The Collatz sequence (halve if even, else 3n+1) takes 65 steps to reach 1.
LaTeX source of the formulas on this page
\[ 55708 = 2^{2} \times 19 \times 733 \]55708 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 12 |
| Sum of divisors | 102760 |
| Euler totient φ(n) | 26352 |
| Square | 3103381264 |
| Cube | 172883163454912 |
| Square root | 236.025422 (= 2√13927) |
| Digit sum / digital root | 25 / 7 |
| Collatz steps to 1 | 65 |
| Scientific notation | 5.5708 × |
55708 in other forms
| Form | Value |
|---|---|
| In words | fifty-five thousand seven hundred and eight |
| Binary (base 2) | 1101100110011100 |
| Octal (base 8) | 154634 |
| Hexadecimal (base 16) | D99C |
| Base 3 | 2211102021 |
| As time | 55708 seconds = 15 h 28 min 28 s |
Is 55708 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (55708 ÷ 2 = 27854) | A number is divisible by 2 if the last digit is even (0, 2, 4, 6, 8). |
| 3 | No (remainder 1) | A number is divisible by 3 if the digits add up to a multiple of 3. |
| 4 | Yes (55708 ÷ 4 = 13927) | A number is divisible by 4 if the last two digits make a multiple of 4. |
| 5 | No (remainder 3) | A number is divisible by 5 if the last digit is 0 or 5. |
| 6 | No (remainder 4) | 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 4) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 7) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 8) | 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 4) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 55708 a prime number?
No. 55708 = × 19 × 733, so it is divisible by 2.
What are the factors of 55708?
1, 2, 4, 19, 38, 76, 733, 1466, 2932, 13927, 27854, 55708.
What is 55708 in binary?
1101100110011100 (hexadecimal D99C, octal 154634).
What is the square root of 55708?
About 236.0254, exactly 2√13927.
Is 55708 divisible by 3?
No. Its digits add up to 25, which is not a multiple of 3.
What is special about the number 55708?
It is a composite number with 12 divisors.