The number 38427
38427 is a composite number with 4 divisors. Its prime factorisation is 3 × 12809. Divisors (4): 1, 3, 12809, 38427.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 38427: a semiprime: 3 × 12809, the product of two primes.
- 2
38427 is composite. Its prime factorisation is
- 3
The divisors add up to 51240; without 38427 itself that is 12813, so 38427 is deficient (12813 is less than 38427). Euler's totient φ(38427) = 25616 numbers up to 38427 share no factor with it.
- 4
The digits of 38427 add up to 24, and repeating that until one digit is left gives the digital root 6. The Collatz sequence (halve if even, else 3n+1) takes 168 steps to reach 1.
LaTeX source of the formulas on this page
\[ 38427 = 3 \times 12809 \]
38427 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 51240 |
| Euler totient φ(n) | 25616 |
| Square | 1476634329 |
| Cube | 56742627360483 |
| Square root | 196.028059 |
| Digit sum / digital root | 24 / 6 |
| Collatz steps to 1 | 168 |
| Scientific notation | 3.8427 × |
38427 in other forms
| Form | Value |
|---|---|
| In words | thirty-eight thousand four hundred and twenty-seven |
| Binary (base 2) | 1001011000011011 |
| Octal (base 8) | 113033 |
| Hexadecimal (base 16) | 961B |
| Base 3 | 1221201020 |
| As time | 38427 seconds = 10 h 40 min 27 s |
Is 38427 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 | Yes (38427 ÷ 3 = 12809) | 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 2) | A number is divisible by 5 if the last digit is 0 or 5. |
| 6 | No (remainder 3) | A number is divisible by 6 if it is divisible by both 2 and 3. |
| 7 | No (remainder 4) | 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 6) | 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 3) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 38427 a prime number?
No. 38427 = 3 × 12809, so it is divisible by 3.
What are the factors of 38427?
1, 3, 12809, 38427.
What is 38427 in binary?
1001011000011011 (hexadecimal 961B, octal 113033).
What is the square root of 38427?
About 196.0281.
Is 38427 divisible by 3?
Yes. Its digits add up to 24, a multiple of 3.
What is special about the number 38427?
38427 is a semiprime: 3 × 12809, the product of two primes.