The number 80049
80049 is a composite number with 4 divisors. Its prime factorisation is 3 × 26683. Divisors (4): 1, 3, 26683, 80049.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 80049: a semiprime: 3 × 26683, the product of two primes.
- 2
80049 is composite. Its prime factorisation is
- 3
The divisors add up to 106736; without 80049 itself that is 26687, so 80049 is deficient (26687 is less than 80049). Euler's totient φ(80049) = 53364 numbers up to 80049 share no factor with it.
- 4
The digits of 80049 add up to 21, and repeating that until one digit is left gives the digital root 3. The Collatz sequence (halve if even, else 3n+1) takes 120 steps to reach 1.
LaTeX source of the formulas on this page
\[ 80049 = 3 \times 26683 \]
80049 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 106736 |
| Euler totient φ(n) | 53364 |
| Square | 6407842401 |
| Cube | 512941376357649 |
| Square root | 282.929320 |
| Digit sum / digital root | 21 / 3 |
| Collatz steps to 1 | 120 |
| Scientific notation | 8.0049 × |
80049 in other forms
| Form | Value |
|---|---|
| In words | eighty thousand and forty-nine |
| Binary (base 2) | 10011100010110001 |
| Octal (base 8) | 234261 |
| Hexadecimal (base 16) | 138B1 |
| Base 3 | 11001210210 |
| As time | 80049 seconds = 22 h 14 min 9 s |
Is 80049 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 (80049 ÷ 3 = 26683) | A number is divisible by 3 if the digits add up to a multiple of 3. |
| 4 | No (remainder 1) | A number is divisible by 4 if the last two digits make a multiple of 4. |
| 5 | No (remainder 4) | 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 4) | 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 1) | 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 9) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 2) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 9) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 80049 a prime number?
No. 80049 = 3 × 26683, so it is divisible by 3.
What are the factors of 80049?
1, 3, 26683, 80049.
What is 80049 in binary?
10011100010110001 (hexadecimal 138B1, octal 234261).
What is the square root of 80049?
About 282.9293.
Is 80049 divisible by 3?
Yes. Its digits add up to 21, a multiple of 3.
What is special about the number 80049?
80049 is a semiprime: 3 × 26683, the product of two primes.