The number 38799
38799 is a composite number with 10 divisors. Its prime factorisation is × 479. Divisors (10): 1, 3, 9, 27, 81, 479, 1437, 4311, 12933, 38799.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
38799 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
38799 is composite. Its prime factorisation is
- 3
The divisors add up to 58080; without 38799 itself that is 19281, so 38799 is deficient (19281 is less than 38799). Euler's totient φ(38799) = 25812 numbers up to 38799 share no factor with it.
- 4
The digits of 38799 add up to 36, and repeating that until one digit is left gives the digital root 9. The Collatz sequence (halve if even, else 3n+1) takes 80 steps to reach 1.
LaTeX source of the formulas on this page
\[ 38799 = 3^{4} \times 479 \]38799 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 10 |
| Sum of divisors | 58080 |
| Euler totient φ(n) | 25812 |
| Square | 1505362401 |
| Cube | 58406555796399 |
| Square root | 196.974618 (= 9√479) |
| Digit sum / digital root | 36 / 9 |
| Collatz steps to 1 | 80 |
| Scientific notation | 3.8799 × |
38799 in other forms
| Form | Value |
|---|---|
| In words | thirty-eight thousand seven hundred and ninety-nine |
| Binary (base 2) | 1001011110001111 |
| Octal (base 8) | 113617 |
| Hexadecimal (base 16) | 978F |
| Base 3 | 1222020000 |
| As time | 38799 seconds = 10 h 46 min 39 s |
Is 38799 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 (38799 ÷ 3 = 12933) | 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 4) | 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 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 7) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | Yes (38799 ÷ 9 = 4311) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 9) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 2) | 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 38799 a prime number?
No. 38799 = × 479, so it is divisible by 3.
What are the factors of 38799?
1, 3, 9, 27, 81, 479, 1437, 4311, 12933, 38799.
What is 38799 in binary?
1001011110001111 (hexadecimal 978F, octal 113617).
What is the square root of 38799?
About 196.9746, exactly 9√479.
Is 38799 divisible by 3?
Yes. Its digits add up to 36, a multiple of 3.
What is special about the number 38799?
It is a composite number with 10 divisors.