The number 49790
49790 is a composite number with 16 divisors. Its prime factorisation is 2 × 5 × 13 × 383. Divisors (16): 1, 2, 5, 10, 13, 26, 65, 130, 383, 766, 1915, 3830, 4979, 9958, 24895, 49790.
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How to work it out
- 1
49790 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
49790 is composite. Its prime factorisation is
- 3
The divisors add up to 96768; without 49790 itself that is 46978, so 49790 is deficient (46978 is less than 49790). Euler's totient φ(49790) = 18336 numbers up to 49790 share no factor with it.
- 4
The digits of 49790 add up to 29, and repeating that until one digit is left gives the digital root 2. The Collatz sequence (halve if even, else 3n+1) takes 189 steps to reach 1.
LaTeX source of the formulas on this page
\[ 49790 = 2 \times 5 \times 13 \times 383 \]
49790 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 16 |
| Sum of divisors | 96768 |
| Euler totient φ(n) | 18336 |
| Square | 2479044100 |
| Cube | 123431605739000 |
| Square root | 223.136729 |
| Digit sum / digital root | 29 / 2 |
| Collatz steps to 1 | 189 |
| Scientific notation | 4.979 × |
49790 in other forms
| Form | Value |
|---|---|
| In words | forty-nine thousand seven hundred and ninety |
| Binary (base 2) | 1100001001111110 |
| Octal (base 8) | 141176 |
| Hexadecimal (base 16) | C27E |
| Base 3 | 2112022002 |
| As time | 49790 seconds = 13 h 49 min 50 s |
Is 49790 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (49790 ÷ 2 = 24895) | 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 2) | A number is divisible by 4 if the last two digits make a multiple of 4. |
| 5 | Yes (49790 ÷ 5 = 9958) | 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 6) | 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 6) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 2) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | Yes (49790 ÷ 10 = 4979) | 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 2) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 49790 a prime number?
No. 49790 = 2 × 5 × 13 × 383, so it is divisible by 2.
What are the factors of 49790?
1, 2, 5, 10, 13, 26, 65, 130, 383, 766, 1915, 3830, 4979, 9958, 24895, 49790.
What is 49790 in binary?
1100001001111110 (hexadecimal C27E, octal 141176).
What is the square root of 49790?
About 223.1367.
Is 49790 divisible by 3?
No. Its digits add up to 29, which is not a multiple of 3.
What is special about the number 49790?
It is a composite number with 16 divisors.