The number 80027
80027 is a composite number with 4 divisors. Its prime factorisation is 79 × 1013. Divisors (4): 1, 79, 1013, 80027.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 80027: a semiprime: 79 × 1013, the product of two primes.
- 2
80027 is composite. Its prime factorisation is
- 3
The divisors add up to 81120; without 80027 itself that is 1093, so 80027 is deficient (1093 is less than 80027). Euler's totient φ(80027) = 78936 numbers up to 80027 share no factor with it.
- 4
The digits of 80027 add up to 17, and repeating that until one digit is left gives the digital root 8. The Collatz sequence (halve if even, else 3n+1) takes 169 steps to reach 1.
LaTeX source of the formulas on this page
\[ 80027 = 79 \times 1013 \]
80027 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 81120 |
| Euler totient φ(n) | 78936 |
| Square | 6404320729 |
| Cube | 512518574979683 |
| Square root | 282.890438 |
| Digit sum / digital root | 17 / 8 |
| Collatz steps to 1 | 169 |
| Scientific notation | 8.0027 × |
80027 in other forms
| Form | Value |
|---|---|
| In words | eighty thousand and twenty-seven |
| Binary (base 2) | 10011100010011011 |
| Octal (base 8) | 234233 |
| Hexadecimal (base 16) | 1389B |
| Base 3 | 11001202222 |
| As time | 80027 seconds = 22 h 13 min 47 s |
Is 80027 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 | No (remainder 2) | 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 5) | 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 3) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 8) | 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 2) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 11) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 80027 a prime number?
No. 80027 = 79 × 1013, so it is divisible by 79.
What are the factors of 80027?
1, 79, 1013, 80027.
What is 80027 in binary?
10011100010011011 (hexadecimal 1389B, octal 234233).
What is the square root of 80027?
About 282.8904.
Is 80027 divisible by 3?
No. Its digits add up to 17, which is not a multiple of 3.
What is special about the number 80027?
80027 is a semiprime: 79 × 1013, the product of two primes.