The number 55887
55887 is a composite number with 8 divisors. Its prime factorisation is 3 × 13 × 1433. Divisors (8): 1, 3, 13, 39, 1433, 4299, 18629, 55887.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
55887 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
55887 is composite. Its prime factorisation is
- 3
The divisors add up to 80304; without 55887 itself that is 24417, so 55887 is deficient (24417 is less than 55887). Euler's totient φ(55887) = 34368 numbers up to 55887 share no factor with it.
- 4
The digits of 55887 add up to 33, and repeating that until one digit is left gives the digital root 6. The Collatz sequence (halve if even, else 3n+1) takes 153 steps to reach 1.
LaTeX source of the formulas on this page
\[ 55887 = 3 \times 13 \times 1433 \]
55887 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 8 |
| Sum of divisors | 80304 |
| Euler totient φ(n) | 34368 |
| Square | 3123356769 |
| Cube | 174555039749103 |
| Square root | 236.404315 |
| Digit sum / digital root | 33 / 6 |
| Collatz steps to 1 | 153 |
| Scientific notation | 5.5887 × |
55887 in other forms
| Form | Value |
|---|---|
| In words | fifty-five thousand eight hundred and eighty-seven |
| Binary (base 2) | 1101101001001111 |
| Octal (base 8) | 155117 |
| Hexadecimal (base 16) | DA4F |
| Base 3 | 2211122220 |
| As time | 55887 seconds = 15 h 31 min 27 s |
Is 55887 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 | Yes (55887 ÷ 3 = 18629) | 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 3) | 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 7) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 6) | 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 7) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 3) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 55887 a prime number?
No. 55887 = 3 × 13 × 1433, so it is divisible by 3.
What are the factors of 55887?
1, 3, 13, 39, 1433, 4299, 18629, 55887.
What is 55887 in binary?
1101101001001111 (hexadecimal DA4F, octal 155117).
What is the square root of 55887?
About 236.4043.
Is 55887 divisible by 3?
Yes. Its digits add up to 33, a multiple of 3.
What is special about the number 55887?
It is a composite number with 8 divisors.