The number 47101
47101 is a composite number with 8 divisors. Its prime factorisation is 19 × 37 × 67. Divisors (8): 1, 19, 37, 67, 703, 1273, 2479, 47101.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
47101 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
47101 is composite. Its prime factorisation is
- 3
The divisors add up to 51680; without 47101 itself that is 4579, so 47101 is deficient (4579 is less than 47101). Euler's totient φ(47101) = 42768 numbers up to 47101 share no factor with it.
- 4
The digits of 47101 add up to 13, and repeating that until one digit is left gives the digital root 4. The Collatz sequence (halve if even, else 3n+1) takes 127 steps to reach 1.
LaTeX source of the formulas on this page
\[ 47101 = 19 \times 37 \times 67 \]
47101 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 8 |
| Sum of divisors | 51680 |
| Euler totient φ(n) | 42768 |
| Square | 2218504201 |
| Cube | 104493766371301 |
| Square root | 217.027648 |
| Digit sum / digital root | 13 / 4 |
| Collatz steps to 1 | 127 |
| Scientific notation | 4.7101 × |
47101 in other forms
| Form | Value |
|---|---|
| In words | forty-seven thousand one hundred and one |
| Binary (base 2) | 1011011111111101 |
| Octal (base 8) | 133775 |
| Hexadecimal (base 16) | B7FD |
| Base 3 | 2101121111 |
| As time | 47101 seconds = 13 h 5 min 1 s |
Is 47101 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 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 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 5) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 4) | 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 10) | 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 47101 a prime number?
No. 47101 = 19 × 37 × 67, so it is divisible by 19.
What are the factors of 47101?
1, 19, 37, 67, 703, 1273, 2479, 47101.
What is 47101 in binary?
1011011111111101 (hexadecimal B7FD, octal 133775).
What is the square root of 47101?
About 217.0276.
Is 47101 divisible by 3?
No. Its digits add up to 13, which is not a multiple of 3.
What is special about the number 47101?
It is a composite number with 8 divisors.