The number 58221
58221 is a composite number with 6 divisors. Its prime factorisation is × 6469. Divisors (6): 1, 3, 9, 6469, 19407, 58221.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
58221 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
58221 is composite. Its prime factorisation is
- 3
The divisors add up to 84110; without 58221 itself that is 25889, so 58221 is deficient (25889 is less than 58221). Euler's totient φ(58221) = 38808 numbers up to 58221 share no factor with it.
- 4
The digits of 58221 add up to 18, and repeating that until one digit is left gives the digital root 9. The Collatz sequence (halve if even, else 3n+1) takes 135 steps to reach 1.
LaTeX source of the formulas on this page
\[ 58221 = 3^{2} \times 6469 \]58221 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 6 |
| Sum of divisors | 84110 |
| Euler totient φ(n) | 38808 |
| Square | 3389684841 |
| Cube | 197350841127861 |
| Square root | 241.290282 (= 3√6469) |
| Digit sum / digital root | 18 / 9 |
| Collatz steps to 1 | 135 |
| Scientific notation | 5.8221 × |
58221 in other forms
| Form | Value |
|---|---|
| In words | fifty-eight thousand two hundred and twenty-one |
| Binary (base 2) | 1110001101101101 |
| Octal (base 8) | 161555 |
| Hexadecimal (base 16) | E36D |
| Base 3 | 2221212100 |
| As time | 58221 seconds = 16 h 10 min 21 s |
Is 58221 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 (58221 ÷ 3 = 19407) | 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 1) | 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 2) | 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 | Yes (58221 ÷ 9 = 6469) | 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 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 58221 a prime number?
No. 58221 = × 6469, so it is divisible by 3.
What are the factors of 58221?
1, 3, 9, 6469, 19407, 58221.
What is 58221 in binary?
1110001101101101 (hexadecimal E36D, octal 161555).
What is the square root of 58221?
About 241.2903, exactly 3√6469.
Is 58221 divisible by 3?
Yes. Its digits add up to 18, a multiple of 3.
What is special about the number 58221?
It is a composite number with 6 divisors.