The number 47117
47117 is a composite number with 8 divisors. Its prime factorisation is 7 × 53 × 127. Divisors (8): 1, 7, 53, 127, 371, 889, 6731, 47117.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
47117 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
47117 is composite. Its prime factorisation is
- 3
The divisors add up to 55296; without 47117 itself that is 8179, so 47117 is deficient (8179 is less than 47117). Euler's totient φ(47117) = 39312 numbers up to 47117 share no factor with it.
- 4
The digits of 47117 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 101 steps to reach 1.
LaTeX source of the formulas on this page
\[ 47117 = 7 \times 53 \times 127 \]
47117 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 8 |
| Sum of divisors | 55296 |
| Euler totient φ(n) | 39312 |
| Square | 2220011689 |
| Cube | 104600290750613 |
| Square root | 217.064507 |
| Digit sum / digital root | 20 / 2 |
| Collatz steps to 1 | 101 |
| Scientific notation | 4.7117 × |
47117 in other forms
| Form | Value |
|---|---|
| In words | forty-seven thousand one hundred and seventeen |
| Binary (base 2) | 1011100000001101 |
| Octal (base 8) | 134015 |
| Hexadecimal (base 16) | B80D |
| Base 3 | 2101122002 |
| As time | 47117 seconds = 13 h 5 min 17 s |
Is 47117 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 2) | 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 | Yes (47117 ÷ 7 = 6731) | 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 5) | 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 7) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 4) | 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 47117 a prime number?
No. 47117 = 7 × 53 × 127, so it is divisible by 7.
What are the factors of 47117?
1, 7, 53, 127, 371, 889, 6731, 47117.
What is 47117 in binary?
1011100000001101 (hexadecimal B80D, octal 134015).
What is the square root of 47117?
About 217.0645.
Is 47117 divisible by 3?
No. Its digits add up to 20, which is not a multiple of 3.
What is special about the number 47117?
It is a composite number with 8 divisors.