The number 55879
55879 is a composite number with 8 divisors. Its prime factorisation is 17 × 19 × 173. Divisors (8): 1, 17, 19, 173, 323, 2941, 3287, 55879.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
55879 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
55879 is composite. Its prime factorisation is
- 3
The divisors add up to 62640; without 55879 itself that is 6761, so 55879 is deficient (6761 is less than 55879). Euler's totient φ(55879) = 49536 numbers up to 55879 share no factor with it.
- 4
The digits of 55879 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
\[ 55879 = 17 \times 19 \times 173 \]
55879 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 8 |
| Sum of divisors | 62640 |
| Euler totient φ(n) | 49536 |
| Square | 3122462641 |
| Cube | 174480089916439 |
| Square root | 236.387394 |
| Digit sum / digital root | 34 / 7 |
| Collatz steps to 1 | 91 |
| Scientific notation | 5.5879 × |
55879 in other forms
| Form | Value |
|---|---|
| In words | fifty-five thousand eight hundred and seventy-nine |
| Binary (base 2) | 1101101001000111 |
| Octal (base 8) | 155107 |
| Hexadecimal (base 16) | DA47 |
| Base 3 | 2211122121 |
| As time | 55879 seconds = 15 h 31 min 19 s |
Is 55879 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 4) | 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 | No (remainder 5) | 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 7) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 9) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 10) | 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 55879 a prime number?
No. 55879 = 17 × 19 × 173, so it is divisible by 17.
What are the factors of 55879?
1, 17, 19, 173, 323, 2941, 3287, 55879.
What is 55879 in binary?
1101101001000111 (hexadecimal DA47, octal 155107).
What is the square root of 55879?
About 236.3874.
Is 55879 divisible by 3?
No. Its digits add up to 34, which is not a multiple of 3.
What is special about the number 55879?
It is a composite number with 8 divisors.