The number 80197
80197 is a composite number with 8 divisors. Its prime factorisation is 13 × 31 × 199. Divisors (8): 1, 13, 31, 199, 403, 2587, 6169, 80197.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
80197 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
80197 is composite. Its prime factorisation is
- 3
The divisors add up to 89600; without 80197 itself that is 9403, so 80197 is deficient (9403 is less than 80197). Euler's totient φ(80197) = 71280 numbers up to 80197 share no factor with it.
- 4
The digits of 80197 add up to 25, and repeating that until one digit is left gives the digital root 7. The Collatz sequence (halve if even, else 3n+1) takes 94 steps to reach 1.
LaTeX source of the formulas on this page
\[ 80197 = 13 \times 31 \times 199 \]
80197 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 8 |
| Sum of divisors | 89600 |
| Euler totient φ(n) | 71280 |
| Square | 6431558809 |
| Cube | 515791721805373 |
| Square root | 283.190748 |
| Digit sum / digital root | 25 / 7 |
| Collatz steps to 1 | 94 |
| Scientific notation | 8.0197 × |
80197 in other forms
| Form | Value |
|---|---|
| In words | eighty thousand one hundred and ninety-seven |
| Binary (base 2) | 10011100101000101 |
| Octal (base 8) | 234505 |
| Hexadecimal (base 16) | 13945 |
| Base 3 | 11002000021 |
| As time | 80197 seconds = 22 h 16 min 37 s |
Is 80197 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 1) | 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 1) | 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 5) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 7) | 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 7) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 1) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 80197 a prime number?
No. 80197 = 13 × 31 × 199, so it is divisible by 13.
What are the factors of 80197?
1, 13, 31, 199, 403, 2587, 6169, 80197.
What is 80197 in binary?
10011100101000101 (hexadecimal 13945, octal 234505).
What is the square root of 80197?
About 283.1907.
Is 80197 divisible by 3?
No. Its digits add up to 25, which is not a multiple of 3.
What is special about the number 80197?
It is a composite number with 8 divisors.