The number 47113
47113 is a composite number with 4 divisors. Its prime factorisation is 11 × 4283. Divisors (4): 1, 11, 4283, 47113.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 47113: a semiprime: 11 × 4283, the product of two primes.
- 2
47113 is composite. Its prime factorisation is
- 3
The divisors add up to 51408; without 47113 itself that is 4295, so 47113 is deficient (4295 is less than 47113). Euler's totient φ(47113) = 42820 numbers up to 47113 share no factor with it.
- 4
The digits of 47113 add up to 16, and repeating that until one digit is left gives the digital root 7. The Collatz sequence (halve if even, else 3n+1) takes 83 steps to reach 1.
LaTeX source of the formulas on this page
\[ 47113 = 11 \times 4283 \]
47113 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 51408 |
| Euler totient φ(n) | 42820 |
| Square | 2219634769 |
| Cube | 104573652871897 |
| Square root | 217.055292 |
| Digit sum / digital root | 16 / 7 |
| Collatz steps to 1 | 83 |
| Scientific notation | 4.7113 × |
47113 in other forms
| Form | Value |
|---|---|
| In words | forty-seven thousand one hundred and thirteen |
| Binary (base 2) | 1011100000001001 |
| Octal (base 8) | 134011 |
| Hexadecimal (base 16) | B809 |
| Base 3 | 2101121221 |
| As time | 47113 seconds = 13 h 5 min 13 s |
Is 47113 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 1) | A number is divisible by 4 if the last two digits make a multiple of 4. |
| 5 | No (remainder 3) | 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 3) | 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 7) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 3) | A number is divisible by 10 if the last digit is 0. |
| 11 | Yes (47113 ÷ 11 = 4283) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 1) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 47113 a prime number?
No. 47113 = 11 × 4283, so it is divisible by 11.
What are the factors of 47113?
1, 11, 4283, 47113.
What is 47113 in binary?
1011100000001001 (hexadecimal B809, octal 134011).
What is the square root of 47113?
About 217.0553.
Is 47113 divisible by 3?
No. Its digits add up to 16, which is not a multiple of 3.
What is special about the number 47113?
47113 is a semiprime: 11 × 4283, the product of two primes.