The number 47671
47671 is a composite number with 8 divisors. Its prime factorisation is 13 × 19 × 193. Divisors (8): 1, 13, 19, 193, 247, 2509, 3667, 47671.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
47671 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
47671 is composite. Its prime factorisation is
- 3
The divisors add up to 54320; without 47671 itself that is 6649, so 47671 is deficient (6649 is less than 47671). Euler's totient φ(47671) = 41472 numbers up to 47671 share no factor with it.
- 4
The digits of 47671 add up to 25, and repeating that until one digit is left gives the digital root 7. The Collatz sequence (halve if even, else 3n+1) takes 101 steps to reach 1.
LaTeX source of the formulas on this page
\[ 47671 = 13 \times 19 \times 193 \]
47671 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 8 |
| Sum of divisors | 54320 |
| Euler totient φ(n) | 41472 |
| Square | 2272524241 |
| Cube | 108333503092711 |
| Square root | 218.336896 |
| Digit sum / digital root | 25 / 7 |
| Collatz steps to 1 | 101 |
| Scientific notation | 4.7671 × |
47671 in other forms
| Form | Value |
|---|---|
| In words | forty-seven thousand six hundred and seventy-one |
| Binary (base 2) | 1011101000110111 |
| Octal (base 8) | 135067 |
| Hexadecimal (base 16) | BA37 |
| Base 3 | 2102101121 |
| As time | 47671 seconds = 13 h 14 min 31 s |
Is 47671 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 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 1) | 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 7) | 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 1) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 8) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 7) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 47671 a prime number?
No. 47671 = 13 × 19 × 193, so it is divisible by 13.
What are the factors of 47671?
1, 13, 19, 193, 247, 2509, 3667, 47671.
What is 47671 in binary?
1011101000110111 (hexadecimal BA37, octal 135067).
What is the square root of 47671?
About 218.3369.
Is 47671 divisible by 3?
No. Its digits add up to 25, which is not a multiple of 3.
What is special about the number 47671?
It is a composite number with 8 divisors.