The number 55361
55361 is a composite number with 8 divisors. Its prime factorisation is 23 × 29 × 83. Divisors (8): 1, 23, 29, 83, 667, 1909, 2407, 55361.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
55361 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
55361 is composite. Its prime factorisation is
- 3
The divisors add up to 60480; without 55361 itself that is 5119, so 55361 is deficient (5119 is less than 55361). Euler's totient φ(55361) = 50512 numbers up to 55361 share no factor with it.
- 4
The digits of 55361 add up to 20, and repeating that until one digit is left gives the digital root 2. The Collatz sequence (halve if even, else 3n+1) takes 228 steps to reach 1.
LaTeX source of the formulas on this page
\[ 55361 = 23 \times 29 \times 83 \]
55361 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 8 |
| Sum of divisors | 60480 |
| Euler totient φ(n) | 50512 |
| Square | 3064840321 |
| Cube | 169672625010881 |
| Square root | 235.289184 |
| Digit sum / digital root | 20 / 2 |
| Collatz steps to 1 | 228 |
| Scientific notation | 5.5361 × |
55361 in other forms
| Form | Value |
|---|---|
| In words | fifty-five thousand three hundred and sixty-one |
| Binary (base 2) | 1101100001000001 |
| Octal (base 8) | 154101 |
| Hexadecimal (base 16) | D841 |
| Base 3 | 2210221102 |
| As time | 55361 seconds = 15 h 22 min 41 s |
Is 55361 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 2) | 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 1) | A number is divisible by 5 if the last digit is 0 or 5. |
| 6 | No (remainder 5) | 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 1) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 2) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 1) | 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 5) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 55361 a prime number?
No. 55361 = 23 × 29 × 83, so it is divisible by 23.
What are the factors of 55361?
1, 23, 29, 83, 667, 1909, 2407, 55361.
What is 55361 in binary?
1101100001000001 (hexadecimal D841, octal 154101).
What is the square root of 55361?
About 235.2892.
Is 55361 divisible by 3?
No. Its digits add up to 20, which is not a multiple of 3.
What is special about the number 55361?
It is a composite number with 8 divisors.