The number 55996
55996 is a composite number with 6 divisors. Its prime factorisation is × 13999. Divisors (6): 1, 2, 4, 13999, 27998, 55996.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
55996 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
55996 is composite. Its prime factorisation is
- 3
The divisors add up to 98000; without 55996 itself that is 42004, so 55996 is deficient (42004 is less than 55996). Euler's totient φ(55996) = 27996 numbers up to 55996 share no factor with it.
- 4
The digits of 55996 add up to 34, and repeating that until one digit is left gives the digital root 7. The Collatz sequence (halve if even, else 3n+1) takes 91 steps to reach 1.
LaTeX source of the formulas on this page
\[ 55996 = 2^{2} \times 13999 \]55996 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 6 |
| Sum of divisors | 98000 |
| Euler totient φ(n) | 27996 |
| Square | 3135552016 |
| Cube | 175578370687936 |
| Square root | 236.634740 (= 2√13999) |
| Digit sum / digital root | 34 / 7 |
| Collatz steps to 1 | 91 |
| Scientific notation | 5.5996 × |
55996 in other forms
| Form | Value |
|---|---|
| In words | fifty-five thousand nine hundred and ninety-six |
| Binary (base 2) | 1101101010111100 |
| Octal (base 8) | 155274 |
| Hexadecimal (base 16) | DABC |
| Base 3 | 2211210221 |
| As time | 55996 seconds = 15 h 33 min 16 s |
Is 55996 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (55996 ÷ 2 = 27998) | 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 (55996 ÷ 4 = 13999) | A number is divisible by 4 if the last two digits make a multiple of 4. |
| 5 | No (remainder 1) | 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 3) | 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 6) | 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 4) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 55996 a prime number?
No. 55996 = × 13999, so it is divisible by 2.
What are the factors of 55996?
1, 2, 4, 13999, 27998, 55996.
What is 55996 in binary?
1101101010111100 (hexadecimal DABC, octal 155274).
What is the square root of 55996?
About 236.6347, exactly 2√13999.
Is 55996 divisible by 3?
No. Its digits add up to 34, which is not a multiple of 3.
What is special about the number 55996?
It is a composite number with 6 divisors.