The number 47708
47708 is a composite number with 6 divisors. Its prime factorisation is × 11927. Divisors (6): 1, 2, 4, 11927, 23854, 47708.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
47708 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
47708 is composite. Its prime factorisation is
- 3
The divisors add up to 83496; without 47708 itself that is 35788, so 47708 is deficient (35788 is less than 47708). Euler's totient φ(47708) = 23852 numbers up to 47708 share no factor with it.
- 4
The digits of 47708 add up to 26, and repeating that until one digit is left gives the digital root 8. The Collatz sequence (halve if even, else 3n+1) takes 52 steps to reach 1.
LaTeX source of the formulas on this page
\[ 47708 = 2^{2} \times 11927 \]47708 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 6 |
| Sum of divisors | 83496 |
| Euler totient φ(n) | 23852 |
| Square | 2276053264 |
| Cube | 108585949118912 |
| Square root | 218.421611 (= 2√11927) |
| Digit sum / digital root | 26 / 8 |
| Collatz steps to 1 | 52 |
| Scientific notation | 4.7708 × |
47708 in other forms
| Form | Value |
|---|---|
| In words | forty-seven thousand seven hundred and eight |
| Binary (base 2) | 1011101001011100 |
| Octal (base 8) | 135134 |
| Hexadecimal (base 16) | BA5C |
| Base 3 | 2102102222 |
| As time | 47708 seconds = 13 h 15 min 8 s |
Is 47708 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (47708 ÷ 2 = 23854) | 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 | Yes (47708 ÷ 4 = 11927) | A number is divisible by 4 if the last two digits make a multiple of 4. |
| 5 | No (remainder 3) | A number is divisible by 5 if the last digit is 0 or 5. |
| 6 | No (remainder 2) | A number is divisible by 6 if it is divisible by both 2 and 3. |
| 7 | No (remainder 3) | 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 4) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 8) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 8) | 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 8) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 47708 a prime number?
No. 47708 = × 11927, so it is divisible by 2.
What are the factors of 47708?
1, 2, 4, 11927, 23854, 47708.
What is 47708 in binary?
1011101001011100 (hexadecimal BA5C, octal 135134).
What is the square root of 47708?
About 218.4216, exactly 2√11927.
Is 47708 divisible by 3?
No. Its digits add up to 26, which is not a multiple of 3.
What is special about the number 47708?
It is a composite number with 6 divisors.