The number 80529
80529 is a composite number with 8 divisors. Its prime factorisation is 3 × 17 × 1579. Divisors (8): 1, 3, 17, 51, 1579, 4737, 26843, 80529.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
80529 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
80529 is composite. Its prime factorisation is
- 3
The divisors add up to 113760; without 80529 itself that is 33231, so 80529 is deficient (33231 is less than 80529). Euler's totient φ(80529) = 50496 numbers up to 80529 share no factor with it.
- 4
The digits of 80529 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 120 steps to reach 1.
LaTeX source of the formulas on this page
\[ 80529 = 3 \times 17 \times 1579 \]
80529 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 8 |
| Sum of divisors | 113760 |
| Euler totient φ(n) | 50496 |
| Square | 6484919841 |
| Cube | 522224109875889 |
| Square root | 283.776320 |
| Digit sum / digital root | 24 / 6 |
| Collatz steps to 1 | 120 |
| Scientific notation | 8.0529 × |
80529 in other forms
| Form | Value |
|---|---|
| In words | eighty thousand five hundred and twenty-nine |
| Binary (base 2) | 10011101010010001 |
| Octal (base 8) | 235221 |
| Hexadecimal (base 16) | 13A91 |
| Base 3 | 11002110120 |
| As time | 80529 seconds = 22 h 22 min 9 s |
Is 80529 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 (80529 ÷ 3 = 26843) | 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 1) | 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 9) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 9) | 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 80529 a prime number?
No. 80529 = 3 × 17 × 1579, so it is divisible by 3.
What are the factors of 80529?
1, 3, 17, 51, 1579, 4737, 26843, 80529.
What is 80529 in binary?
10011101010010001 (hexadecimal 13A91, octal 235221).
What is the square root of 80529?
About 283.7763.
Is 80529 divisible by 3?
Yes. Its digits add up to 24, a multiple of 3.
What is special about the number 80529?
It is a composite number with 8 divisors.