The number 80011
80011 is a composite number with 8 divisors. Its prime factorisation is 29 × 31 × 89. Divisors (8): 1, 29, 31, 89, 899, 2581, 2759, 80011.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
80011 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
80011 is composite. Its prime factorisation is
- 3
The divisors add up to 86400; without 80011 itself that is 6389, so 80011 is deficient (6389 is less than 80011). Euler's totient φ(80011) = 73920 numbers up to 80011 share no factor with it.
- 4
The digits of 80011 add up to 10, and repeating that until one digit is left gives the digital root 1. The Collatz sequence (halve if even, else 3n+1) takes 169 steps to reach 1.
LaTeX source of the formulas on this page
\[ 80011 = 29 \times 31 \times 89 \]
80011 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 8 |
| Sum of divisors | 86400 |
| Euler totient φ(n) | 73920 |
| Square | 6401760121 |
| Cube | 512211229041331 |
| Square root | 282.862157 |
| Digit sum / digital root | 10 / 1 |
| Collatz steps to 1 | 169 |
| Scientific notation | 8.0011 × |
80011 in other forms
| Form | Value |
|---|---|
| In words | eighty thousand and eleven |
| Binary (base 2) | 10011100010001011 |
| Octal (base 8) | 234213 |
| Hexadecimal (base 16) | 1388B |
| Base 3 | 11001202101 |
| As time | 80011 seconds = 22 h 13 min 31 s |
Is 80011 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 1) | 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 1) | A number is divisible by 5 if the last digit is 0 or 5. |
| 6 | No (remainder 1) | 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 3) | 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 1) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 8) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 7) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 80011 a prime number?
No. 80011 = 29 × 31 × 89, so it is divisible by 29.
What are the factors of 80011?
1, 29, 31, 89, 899, 2581, 2759, 80011.
What is 80011 in binary?
10011100010001011 (hexadecimal 1388B, octal 234213).
What is the square root of 80011?
About 282.8622.
Is 80011 divisible by 3?
No. Its digits add up to 10, which is not a multiple of 3.
What is special about the number 80011?
It is a composite number with 8 divisors.