The number 55011
55011 is a composite number with 8 divisors. Its prime factorisation is 3 × 11 × 1667. Divisors (8): 1, 3, 11, 33, 1667, 5001, 18337, 55011.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
55011 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
55011 is composite. Its prime factorisation is
- 3
The divisors add up to 80064; without 55011 itself that is 25053, so 55011 is deficient (25053 is less than 55011). Euler's totient φ(55011) = 33320 numbers up to 55011 share no factor with it.
- 4
The digits of 55011 add up to 12, and repeating that until one digit is left gives the digital root 3. The Collatz sequence (halve if even, else 3n+1) takes 153 steps to reach 1.
LaTeX source of the formulas on this page
\[ 55011 = 3 \times 11 \times 1667 \]
55011 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 8 |
| Sum of divisors | 80064 |
| Euler totient φ(n) | 33320 |
| Square | 3026210121 |
| Cube | 166474844966331 |
| Square root | 234.544239 |
| Digit sum / digital root | 12 / 3 |
| Collatz steps to 1 | 153 |
| Scientific notation | 5.5011 × |
55011 in other forms
| Form | Value |
|---|---|
| In words | fifty-five thousand and eleven |
| Binary (base 2) | 1101011011100011 |
| Octal (base 8) | 153343 |
| Hexadecimal (base 16) | D6E3 |
| Base 3 | 2210110110 |
| As time | 55011 seconds = 15 h 16 min 51 s |
Is 55011 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 (55011 ÷ 3 = 18337) | 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 1) | 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 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 3) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 3) | 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 | Yes (55011 ÷ 11 = 5001) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 3) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 55011 a prime number?
No. 55011 = 3 × 11 × 1667, so it is divisible by 3.
What are the factors of 55011?
1, 3, 11, 33, 1667, 5001, 18337, 55011.
What is 55011 in binary?
1101011011100011 (hexadecimal D6E3, octal 153343).
What is the square root of 55011?
About 234.5442.
Is 55011 divisible by 3?
Yes. Its digits add up to 12, a multiple of 3.
What is special about the number 55011?
It is a composite number with 8 divisors.