The number 49647
49647 is a composite number with 16 divisors. Its prime factorisation is 3 × 13 × 19 × 67. Divisors (16): 1, 3, 13, 19, 39, 57, 67, 201, 247, 741, 871, 1273, 2613, 3819, 16549, 49647.
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How to work it out
- 1
49647 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
49647 is composite. Its prime factorisation is
- 3
The divisors add up to 76160; without 49647 itself that is 26513, so 49647 is deficient (26513 is less than 49647). Euler's totient φ(49647) = 28512 numbers up to 49647 share no factor with it.
- 4
The digits of 49647 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 189 steps to reach 1.
LaTeX source of the formulas on this page
\[ 49647 = 3 \times 13 \times 19 \times 67 \]
49647 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 16 |
| Sum of divisors | 76160 |
| Euler totient φ(n) | 28512 |
| Square | 2464824609 |
| Cube | 122371147363023 |
| Square root | 222.816068 |
| Digit sum / digital root | 30 / 3 |
| Collatz steps to 1 | 189 |
| Scientific notation | 4.9647 × |
49647 in other forms
| Form | Value |
|---|---|
| In words | forty-nine thousand six hundred and forty-seven |
| Binary (base 2) | 1100000111101111 |
| Octal (base 8) | 140757 |
| Hexadecimal (base 16) | C1EF |
| Base 3 | 2112002210 |
| As time | 49647 seconds = 13 h 47 min 27 s |
Is 49647 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 (49647 ÷ 3 = 16549) | 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 2) | 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 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 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 7) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 4) | 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 49647 a prime number?
No. 49647 = 3 × 13 × 19 × 67, so it is divisible by 3.
What are the factors of 49647?
1, 3, 13, 19, 39, 57, 67, 201, 247, 741, 871, 1273, 2613, 3819, 16549, 49647.
What is 49647 in binary?
1100000111101111 (hexadecimal C1EF, octal 140757).
What is the square root of 49647?
About 222.8161.
Is 49647 divisible by 3?
Yes. Its digits add up to 30, a multiple of 3.
What is special about the number 49647?
It is a composite number with 16 divisors.