The number 38171
38171 is a composite number with 12 divisors. Its prime factorisation is × 19 × 41. Divisors (12): 1, 7, 19, 41, 49, 133, 287, 779, 931, 2009, 5453, 38171.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
38171 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
38171 is composite. Its prime factorisation is
- 3
The divisors add up to 47880; without 38171 itself that is 9709, so 38171 is deficient (9709 is less than 38171). Euler's totient φ(38171) = 30240 numbers up to 38171 share no factor with it.
- 4
The digits of 38171 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 93 steps to reach 1.
LaTeX source of the formulas on this page
\[ 38171 = 7^{2} \times 19 \times 41 \]38171 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 12 |
| Sum of divisors | 47880 |
| Euler totient φ(n) | 30240 |
| Square | 1457025241 |
| Cube | 55616110474211 |
| Square root | 195.374000 (= 7√779) |
| Digit sum / digital root | 20 / 2 |
| Collatz steps to 1 | 93 |
| Scientific notation | 3.8171 × |
38171 in other forms
| Form | Value |
|---|---|
| In words | thirty-eight thousand one hundred and seventy-one |
| Binary (base 2) | 1001010100011011 |
| Octal (base 8) | 112433 |
| Hexadecimal (base 16) | 951B |
| Base 3 | 1221100202 |
| As time | 38171 seconds = 10 h 36 min 11 s |
Is 38171 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 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 5) | A number is divisible by 6 if it is divisible by both 2 and 3. |
| 7 | Yes (38171 ÷ 7 = 5453) | 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 2) | 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 1) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 11) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 38171 a prime number?
No. 38171 = × 19 × 41, so it is divisible by 7.
What are the factors of 38171?
1, 7, 19, 41, 49, 133, 287, 779, 931, 2009, 5453, 38171.
What is 38171 in binary?
1001010100011011 (hexadecimal 951B, octal 112433).
What is the square root of 38171?
About 195.3740, exactly 7√779.
Is 38171 divisible by 3?
No. Its digits add up to 20, which is not a multiple of 3.
What is special about the number 38171?
It is a composite number with 12 divisors.