The number 12426
12426 is a composite number with 16 divisors. Its prime factorisation is 2 × 3 × 19 × 109. Divisors (16): 1, 2, 3, 6, 19, 38, 57, 109, 114, 218, 327, 654, 2071, 4142, 6213, 12426.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
12426 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
12426 is composite. Its prime factorisation is
- 3
The divisors add up to 26400; without 12426 itself that is 13974, so 12426 is abundant (13974 is more than 12426). Euler's totient φ(12426) = 3888 numbers up to 12426 share no factor with it.
- 4
The digits of 12426 add up to 15, and repeating that until one digit is left gives the digital root 6. The Collatz sequence (halve if even, else 3n+1) takes 125 steps to reach 1.
LaTeX source of the formulas on this page
\[ 12426 = 2 \times 3 \times 19 \times 109 \]
12426 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 16 |
| Sum of divisors | 26400 |
| Euler totient φ(n) | 3888 |
| Square | 154405476 |
| Cube | 1918642444776 |
| Square root | 111.471970 |
| Digit sum / digital root | 15 / 6 |
| Collatz steps to 1 | 125 |
| Scientific notation | 1.2426 × |
12426 in other forms
| Form | Value |
|---|---|
| In words | twelve thousand four hundred and twenty-six |
| Binary (base 2) | 11000010001010 |
| Octal (base 8) | 30212 |
| Hexadecimal (base 16) | 308A |
| Base 3 | 122001020 |
| As time | 12426 seconds = 3 h 27 min 6 s |
Is 12426 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (12426 ÷ 2 = 6213) | A number is divisible by 2 if the last digit is even (0, 2, 4, 6, 8). |
| 3 | Yes (12426 ÷ 3 = 4142) | A number is divisible by 3 if the digits add up to a multiple of 3. |
| 4 | No (remainder 2) | 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 | Yes (12426 ÷ 6 = 2071) | 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 2) | 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 6) | 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 6) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 12426 a prime number?
No. 12426 = 2 × 3 × 19 × 109, so it is divisible by 2.
What are the factors of 12426?
1, 2, 3, 6, 19, 38, 57, 109, 114, 218, 327, 654, 2071, 4142, 6213, 12426.
What is 12426 in binary?
11000010001010 (hexadecimal 308A, octal 30212).
What is the square root of 12426?
About 111.4720.
Is 12426 divisible by 3?
Yes. Its digits add up to 15, a multiple of 3.
What is special about the number 12426?
It is a composite number with 16 divisors.