The number 49798
49798 is a composite number with 8 divisors. Its prime factorisation is 2 × 7 × 3557. Divisors (8): 1, 2, 7, 14, 3557, 7114, 24899, 49798.
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How to work it out
- 1
What is special about 49798: a happy number: repeatedly adding the squares of its digits reaches 1.
- 2
49798 is composite. Its prime factorisation is
- 3
The divisors add up to 85392; without 49798 itself that is 35594, so 49798 is deficient (35594 is less than 49798). Euler's totient φ(49798) = 21336 numbers up to 49798 share no factor with it.
- 4
The digits of 49798 add up to 37, and repeating that until one digit is left gives the digital root 1. The Collatz sequence (halve if even, else 3n+1) takes 158 steps to reach 1.
LaTeX source of the formulas on this page
\[ 49798 = 2 \times 7 \times 3557 \]
49798 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 8 |
| Sum of divisors | 85392 |
| Euler totient φ(n) | 21336 |
| Square | 2479840804 |
| Cube | 123491112357592 |
| Square root | 223.154655 |
| Digit sum / digital root | 37 / 1 |
| Collatz steps to 1 | 158 |
| Scientific notation | 4.9798 × |
49798 in other forms
| Form | Value |
|---|---|
| In words | forty-nine thousand seven hundred and ninety-eight |
| Binary (base 2) | 1100001010000110 |
| Octal (base 8) | 141206 |
| Hexadecimal (base 16) | C286 |
| Base 3 | 2112022101 |
| As time | 49798 seconds = 13 h 49 min 58 s |
Is 49798 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (49798 ÷ 2 = 24899) | 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 | No (remainder 2) | 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 4) | A number is divisible by 6 if it is divisible by both 2 and 3. |
| 7 | Yes (49798 ÷ 7 = 7114) | 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 1) | 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 10) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 49798 a prime number?
No. 49798 = 2 × 7 × 3557, so it is divisible by 2.
What are the factors of 49798?
1, 2, 7, 14, 3557, 7114, 24899, 49798.
What is 49798 in binary?
1100001010000110 (hexadecimal C286, octal 141206).
What is the square root of 49798?
About 223.1547.
Is 49798 divisible by 3?
No. Its digits add up to 37, which is not a multiple of 3.
What is special about the number 49798?
49798 is a happy number: repeatedly adding the squares of its digits reaches 1.