The number 12427
12427 is a composite number with 6 divisors. Its prime factorisation is Ć 43. Divisors (6): 1, 17, 43, 289, 731, 12427.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
12427 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
12427 is composite. Its prime factorisation is
- 3
The divisors add up to 13508; without 12427 itself that is 1081, so 12427 is deficient (1081 is less than 12427). Euler's totient Ļ(12427) = 11424 numbers up to 12427 share no factor with it.
- 4
The digits of 12427 add up to 16, and repeating that until one digit is left gives the digital root 7. The Collatz sequence (halve if even, else 3n+1) takes 63 steps to reach 1.
LaTeX source of the formulas on this page
\[ 12427 = 17^{2} \times 43 \]12427 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 6 |
| Sum of divisors | 13508 |
| Euler totient Ļ(n) | 11424 |
| Square | 154430329 |
| Cube | 1919105698483 |
| Square root | 111.476455 (= 17ā43) |
| Digit sum / digital root | 16 / 7 |
| Collatz steps to 1 | 63 |
| Scientific notation | 1.2427 Ć |
12427 in other forms
| Form | Value |
|---|---|
| In words | twelve thousand four hundred and twenty-seven |
| Binary (base 2) | 11000010001011 |
| Octal (base 8) | 30213 |
| Hexadecimal (base 16) | 308B |
| Base 3 | 122001021 |
| As time | 12427 seconds = 3 h 27 min 7 s |
Is 12427 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 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 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 3) | 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 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 12427 a prime number?
No. 12427 = Ć 43, so it is divisible by 17.
What are the factors of 12427?
1, 17, 43, 289, 731, 12427.
What is 12427 in binary?
11000010001011 (hexadecimal 308B, octal 30213).
What is the square root of 12427?
About 111.4765, exactly 17ā43.
Is 12427 divisible by 3?
No. Its digits add up to 16, which is not a multiple of 3.
What is special about the number 12427?
It is a composite number with 6 divisors.