The number 55867
55867 is a composite number with 8 divisors. Its prime factorisation is 7 × 23 × 347. Divisors (8): 1, 7, 23, 161, 347, 2429, 7981, 55867.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
55867 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
55867 is composite. Its prime factorisation is
- 3
The divisors add up to 66816; without 55867 itself that is 10949, so 55867 is deficient (10949 is less than 55867). Euler's totient φ(55867) = 45672 numbers up to 55867 share no factor with it.
- 4
The digits of 55867 add up to 31, and repeating that until one digit is left gives the digital root 4. The Collatz sequence (halve if even, else 3n+1) takes 91 steps to reach 1.
LaTeX source of the formulas on this page
\[ 55867 = 7 \times 23 \times 347 \]
55867 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 8 |
| Sum of divisors | 66816 |
| Euler totient φ(n) | 45672 |
| Square | 3121121689 |
| Cube | 174367705399363 |
| Square root | 236.362010 |
| Digit sum / digital root | 31 / 4 |
| Collatz steps to 1 | 91 |
| Scientific notation | 5.5867 × |
55867 in other forms
| Form | Value |
|---|---|
| In words | fifty-five thousand eight hundred and sixty-seven |
| Binary (base 2) | 1101101000111011 |
| Octal (base 8) | 155073 |
| Hexadecimal (base 16) | DA3B |
| Base 3 | 2211122011 |
| As time | 55867 seconds = 15 h 31 min 7 s |
Is 55867 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 1) | 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 1) | A number is divisible by 6 if it is divisible by both 2 and 3. |
| 7 | Yes (55867 ÷ 7 = 7981) | 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 3) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 4) | 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 9) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 7) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 55867 a prime number?
No. 55867 = 7 × 23 × 347, so it is divisible by 7.
What are the factors of 55867?
1, 7, 23, 161, 347, 2429, 7981, 55867.
What is 55867 in binary?
1101101000111011 (hexadecimal DA3B, octal 155073).
What is the square root of 55867?
About 236.3620.
Is 55867 divisible by 3?
No. Its digits add up to 31, which is not a multiple of 3.
What is special about the number 55867?
It is a composite number with 8 divisors.