The number 80673
80673 is a composite number with 4 divisors. Its prime factorisation is 3 × 26891. Divisors (4): 1, 3, 26891, 80673.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 80673: a semiprime: 3 × 26891, the product of two primes.
- 2
80673 is composite. Its prime factorisation is
- 3
The divisors add up to 107568; without 80673 itself that is 26895, so 80673 is deficient (26895 is less than 80673). Euler's totient φ(80673) = 53780 numbers up to 80673 share no factor with it.
- 4
The digits of 80673 add up to 24, and repeating that until one digit is left gives the digital root 6. The Collatz sequence (halve if even, else 3n+1) takes 138 steps to reach 1.
LaTeX source of the formulas on this page
\[ 80673 = 3 \times 26891 \]
80673 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 107568 |
| Euler totient φ(n) | 53780 |
| Square | 6508132929 |
| Cube | 525030607781217 |
| Square root | 284.029928 |
| Digit sum / digital root | 24 / 6 |
| Collatz steps to 1 | 138 |
| Scientific notation | 8.0673 × |
80673 in other forms
| Form | Value |
|---|---|
| In words | eighty thousand six hundred and seventy-three |
| Binary (base 2) | 10011101100100001 |
| Octal (base 8) | 235441 |
| Hexadecimal (base 16) | 13B21 |
| Base 3 | 11002122220 |
| As time | 80673 seconds = 22 h 24 min 33 s |
Is 80673 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 (80673 ÷ 3 = 26891) | 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 3) | 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 5) | 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 6) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 3) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 10) | 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 80673 a prime number?
No. 80673 = 3 × 26891, so it is divisible by 3.
What are the factors of 80673?
1, 3, 26891, 80673.
What is 80673 in binary?
10011101100100001 (hexadecimal 13B21, octal 235441).
What is the square root of 80673?
About 284.0299.
Is 80673 divisible by 3?
Yes. Its digits add up to 24, a multiple of 3.
What is special about the number 80673?
80673 is a semiprime: 3 × 26891, the product of two primes.