The number 11799
11799 is a composite number with 16 divisors. Its prime factorisation is × 19 × 23. Divisors (16): 1, 3, 9, 19, 23, 27, 57, 69, 171, 207, 437, 513, 621, 1311, 3933, 11799.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 11799: a Harshad number: divisible by its digit sum 27.
- 2
11799 is composite. Its prime factorisation is
- 3
The divisors add up to 19200; without 11799 itself that is 7401, so 11799 is deficient (7401 is less than 11799). Euler's totient φ(11799) = 7128 numbers up to 11799 share no factor with it.
- 4
The digits of 11799 add up to 27, and repeating that until one digit is left gives the digital root 9. The Collatz sequence (halve if even, else 3n+1) takes 50 steps to reach 1.
LaTeX source of the formulas on this page
\[ 11799 = 3^{3} \times 19 \times 23 \]11799 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 16 |
| Sum of divisors | 19200 |
| Euler totient φ(n) | 7128 |
| Square | 139216401 |
| Cube | 1642614315399 |
| Square root | 108.623202 (= 3√1311) |
| Digit sum / digital root | 27 / 9 |
| Collatz steps to 1 | 50 |
| Scientific notation | 1.1799 × |
11799 in other forms
| Form | Value |
|---|---|
| In words | eleven thousand seven hundred and ninety-nine |
| Binary (base 2) | 10111000010111 |
| Octal (base 8) | 27027 |
| Hexadecimal (base 16) | 2E17 |
| Base 3 | 121012000 |
| As time | 11799 seconds = 3 h 16 min 39 s |
Is 11799 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 (11799 ÷ 3 = 3933) | 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 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 7) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | Yes (11799 ÷ 9 = 1311) | 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 7) | 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 11799 a prime number?
No. 11799 = × 19 × 23, so it is divisible by 3.
What are the factors of 11799?
1, 3, 9, 19, 23, 27, 57, 69, 171, 207, 437, 513, 621, 1311, 3933, 11799.
What is 11799 in binary?
10111000010111 (hexadecimal 2E17, octal 27027).
What is the square root of 11799?
About 108.6232, exactly 3√1311.
Is 11799 divisible by 3?
Yes. Its digits add up to 27, a multiple of 3.
What is special about the number 11799?
11799 is a Harshad number: divisible by its digit sum 27.