The number 11199
11199 is a composite number with 4 divisors. Its prime factorisation is 3 × 3733. Divisors (4): 1, 3, 3733, 11199.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 11199: a semiprime: 3 × 3733, the product of two primes.
- 2
11199 is composite. Its prime factorisation is
- 3
The divisors add up to 14936; without 11199 itself that is 3737, so 11199 is deficient (3737 is less than 11199). Euler's totient φ(11199) = 7464 numbers up to 11199 share no factor with it.
- 4
The digits of 11199 add up to 21, and repeating that until one digit is left gives the digital root 3. The Collatz sequence (halve if even, else 3n+1) takes 73 steps to reach 1.
LaTeX source of the formulas on this page
\[ 11199 = 3 \times 3733 \]
11199 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 14936 |
| Euler totient φ(n) | 7464 |
| Square | 125417601 |
| Cube | 1404551713599 |
| Square root | 105.825328 |
| Digit sum / digital root | 21 / 3 |
| Collatz steps to 1 | 73 |
| Scientific notation | 1.1199 × |
11199 in other forms
| Form | Value |
|---|---|
| In words | eleven thousand one hundred and ninety-nine |
| Binary (base 2) | 10101110111111 |
| Octal (base 8) | 25677 |
| Hexadecimal (base 16) | 2BBF |
| Base 3 | 120100210 |
| As time | 11199 seconds = 3 h 6 min 39 s |
Is 11199 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 (11199 ÷ 3 = 3733) | 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 6) | 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 | No (remainder 3) | 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 1) | 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 11199 a prime number?
No. 11199 = 3 × 3733, so it is divisible by 3.
What are the factors of 11199?
1, 3, 3733, 11199.
What is 11199 in binary?
10101110111111 (hexadecimal 2BBF, octal 25677).
What is the square root of 11199?
About 105.8253.
Is 11199 divisible by 3?
Yes. Its digits add up to 21, a multiple of 3.
What is special about the number 11199?
11199 is a semiprime: 3 × 3733, the product of two primes.