The number 47199
47199 is a composite number with 4 divisors. Its prime factorisation is 3 × 15733. Divisors (4): 1, 3, 15733, 47199.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 47199: a semiprime: 3 × 15733, the product of two primes.
- 2
47199 is composite. Its prime factorisation is
- 3
The divisors add up to 62936; without 47199 itself that is 15737, so 47199 is deficient (15737 is less than 47199). Euler's totient φ(47199) = 31464 numbers up to 47199 share no factor with it.
- 4
The digits of 47199 add up to 30, and repeating that until one digit is left gives the digital root 3. The Collatz sequence (halve if even, else 3n+1) takes 176 steps to reach 1.
LaTeX source of the formulas on this page
\[ 47199 = 3 \times 15733 \]
47199 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 62936 |
| Euler totient φ(n) | 31464 |
| Square | 2227745601 |
| Cube | 105147364621599 |
| Square root | 217.253308 |
| Digit sum / digital root | 30 / 3 |
| Collatz steps to 1 | 176 |
| Scientific notation | 4.7199 × |
47199 in other forms
| Form | Value |
|---|---|
| In words | forty-seven thousand one hundred and ninety-nine |
| Binary (base 2) | 1011100001011111 |
| Octal (base 8) | 134137 |
| Hexadecimal (base 16) | B85F |
| Base 3 | 2101202010 |
| As time | 47199 seconds = 13 h 6 min 39 s |
Is 47199 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 (47199 ÷ 3 = 15733) | 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 | 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 9) | 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 47199 a prime number?
No. 47199 = 3 × 15733, so it is divisible by 3.
What are the factors of 47199?
1, 3, 15733, 47199.
What is 47199 in binary?
1011100001011111 (hexadecimal B85F, octal 134137).
What is the square root of 47199?
About 217.2533.
Is 47199 divisible by 3?
Yes. Its digits add up to 30, a multiple of 3.
What is special about the number 47199?
47199 is a semiprime: 3 × 15733, the product of two primes.