The number 55329
55329 is a composite number with 4 divisors. Its prime factorisation is 3 × 18443. Divisors (4): 1, 3, 18443, 55329.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 55329: a semiprime: 3 × 18443, the product of two primes.
- 2
55329 is composite. Its prime factorisation is
- 3
The divisors add up to 73776; without 55329 itself that is 18447, so 55329 is deficient (18447 is less than 55329). Euler's totient φ(55329) = 36884 numbers up to 55329 share no factor with it.
- 4
The digits of 55329 add up to 24, and repeating that until one digit is left gives the digital root 6. The Collatz sequence (halve if even, else 3n+1) takes 91 steps to reach 1.
LaTeX source of the formulas on this page
\[ 55329 = 3 \times 18443 \]
55329 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 73776 |
| Euler totient φ(n) | 36884 |
| Square | 3061298241 |
| Cube | 169378570376289 |
| Square root | 235.221173 |
| Digit sum / digital root | 24 / 6 |
| Collatz steps to 1 | 91 |
| Scientific notation | 5.5329 × |
55329 in other forms
| Form | Value |
|---|---|
| In words | fifty-five thousand three hundred and twenty-nine |
| Binary (base 2) | 1101100000100001 |
| Octal (base 8) | 154041 |
| Hexadecimal (base 16) | D821 |
| Base 3 | 2210220020 |
| As time | 55329 seconds = 15 h 22 min 9 s |
Is 55329 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 (55329 ÷ 3 = 18443) | A number is divisible by 3 if the digits add up to a multiple of 3. |
| 4 | No (remainder 1) | 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 3) | 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 1) | 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 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 9) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 55329 a prime number?
No. 55329 = 3 × 18443, so it is divisible by 3.
What are the factors of 55329?
1, 3, 18443, 55329.
What is 55329 in binary?
1101100000100001 (hexadecimal D821, octal 154041).
What is the square root of 55329?
About 235.2212.
Is 55329 divisible by 3?
Yes. Its digits add up to 24, a multiple of 3.
What is special about the number 55329?
55329 is a semiprime: 3 × 18443, the product of two primes.