The number 49912
49912 is a composite number with 16 divisors. Its prime factorisation is × 17 × 367. Divisors (16): 1, 2, 4, 8, 17, 34, 68, 136, 367, 734, 1468, 2936, 6239, 12478, 24956, 49912.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
49912 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
49912 is composite. Its prime factorisation is
- 3
The divisors add up to 99360; without 49912 itself that is 49448, so 49912 is deficient (49448 is less than 49912). Euler's totient φ(49912) = 23424 numbers up to 49912 share no factor with it.
- 4
The digits of 49912 add up to 25, and repeating that until one digit is left gives the digital root 7. The Collatz sequence (halve if even, else 3n+1) takes 52 steps to reach 1.
LaTeX source of the formulas on this page
\[ 49912 = 2^{3} \times 17 \times 367 \]49912 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 16 |
| Sum of divisors | 99360 |
| Euler totient φ(n) | 23424 |
| Square | 2491207744 |
| Cube | 124341160918528 |
| Square root | 223.409937 (= 2√12478) |
| Digit sum / digital root | 25 / 7 |
| Collatz steps to 1 | 52 |
| Scientific notation | 4.9912 × |
49912 in other forms
| Form | Value |
|---|---|
| In words | forty-nine thousand nine hundred and twelve |
| Binary (base 2) | 1100001011111000 |
| Octal (base 8) | 141370 |
| Hexadecimal (base 16) | C2F8 |
| Base 3 | 2112110121 |
| As time | 49912 seconds = 13 h 51 min 52 s |
Is 49912 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (49912 ÷ 2 = 24956) | A number is divisible by 2 if the last digit is even (0, 2, 4, 6, 8). |
| 3 | No (remainder 1) | A number is divisible by 3 if the digits add up to a multiple of 3. |
| 4 | Yes (49912 ÷ 4 = 12478) | 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 4) | A number is divisible by 6 if it is divisible by both 2 and 3. |
| 7 | No (remainder 2) | 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 | Yes (49912 ÷ 8 = 6239) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 7) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 2) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 5) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 4) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 49912 a prime number?
No. 49912 = × 17 × 367, so it is divisible by 2.
What are the factors of 49912?
1, 2, 4, 8, 17, 34, 68, 136, 367, 734, 1468, 2936, 6239, 12478, 24956, 49912.
What is 49912 in binary?
1100001011111000 (hexadecimal C2F8, octal 141370).
What is the square root of 49912?
About 223.4099, exactly 2√12478.
Is 49912 divisible by 3?
No. Its digits add up to 25, which is not a multiple of 3.
What is special about the number 49912?
It is a composite number with 16 divisors.