The number 13199
13199 is a composite number with 4 divisors. Its prime factorisation is 67 × 197. Divisors (4): 1, 67, 197, 13199.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 13199: a semiprime: 67 × 197, the product of two primes.
- 2
13199 is composite. Its prime factorisation is
- 3
The divisors add up to 13464; without 13199 itself that is 265, so 13199 is deficient (265 is less than 13199). Euler's totient φ(13199) = 12936 numbers up to 13199 share no factor with it.
- 4
The digits of 13199 add up to 23, and repeating that until one digit is left gives the digital root 5. The Collatz sequence (halve if even, else 3n+1) takes 99 steps to reach 1.
LaTeX source of the formulas on this page
\[ 13199 = 67 \times 197 \]
13199 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 13464 |
| Euler totient φ(n) | 12936 |
| Square | 174213601 |
| Cube | 2299445319599 |
| Square root | 114.886901 |
| Digit sum / digital root | 23 / 5 |
| Collatz steps to 1 | 99 |
| Scientific notation | 1.3199 × |
13199 in other forms
| Form | Value |
|---|---|
| In words | thirteen thousand one hundred and ninety-nine |
| Binary (base 2) | 11001110001111 |
| Octal (base 8) | 31617 |
| Hexadecimal (base 16) | 338F |
| Base 3 | 200002212 |
| As time | 13199 seconds = 3 h 39 min 59 s |
Is 13199 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 4) | 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 | 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 | No (remainder 5) | 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 10) | 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 13199 a prime number?
No. 13199 = 67 × 197, so it is divisible by 67.
What are the factors of 13199?
1, 67, 197, 13199.
What is 13199 in binary?
11001110001111 (hexadecimal 338F, octal 31617).
What is the square root of 13199?
About 114.8869.
Is 13199 divisible by 3?
No. Its digits add up to 23, which is not a multiple of 3.
What is special about the number 13199?
13199 is a semiprime: 67 × 197, the product of two primes.