The number 55567
55567 is a composite number with 4 divisors. Its prime factorisation is 181 × 307. Divisors (4): 1, 181, 307, 55567.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 55567: a semiprime: 181 × 307, the product of two primes.
- 2
55567 is composite. Its prime factorisation is
- 3
The divisors add up to 56056; without 55567 itself that is 489, so 55567 is deficient (489 is less than 55567). Euler's totient φ(55567) = 55080 numbers up to 55567 share no factor with it.
- 4
The digits of 55567 add up to 28, and repeating that until one digit is left gives the digital root 1. The Collatz sequence (halve if even, else 3n+1) takes 140 steps to reach 1.
LaTeX source of the formulas on this page
\[ 55567 = 181 \times 307 \]
55567 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 56056 |
| Euler totient φ(n) | 55080 |
| Square | 3087691489 |
| Cube | 171573752969263 |
| Square root | 235.726536 |
| Digit sum / digital root | 28 / 1 |
| Collatz steps to 1 | 140 |
| Scientific notation | 5.5567 × |
55567 in other forms
| Form | Value |
|---|---|
| In words | fifty-five thousand five hundred and sixty-seven |
| Binary (base 2) | 1101100100001111 |
| Octal (base 8) | 154417 |
| Hexadecimal (base 16) | D90F |
| Base 3 | 2211020001 |
| As time | 55567 seconds = 15 h 26 min 7 s |
Is 55567 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 | No (remainder 1) | 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 1) | 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 6) | 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 55567 a prime number?
No. 55567 = 181 × 307, so it is divisible by 181.
What are the factors of 55567?
1, 181, 307, 55567.
What is 55567 in binary?
1101100100001111 (hexadecimal D90F, octal 154417).
What is the square root of 55567?
About 235.7265.
Is 55567 divisible by 3?
No. Its digits add up to 28, which is not a multiple of 3.
What is special about the number 55567?
55567 is a semiprime: 181 × 307, the product of two primes.