The number 26426
26426 is a composite number with 8 divisors. Its prime factorisation is 2 × 73 × 181. Divisors (8): 1, 2, 73, 146, 181, 362, 13213, 26426.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
26426 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
26426 is composite. Its prime factorisation is
- 3
The divisors add up to 40404; without 26426 itself that is 13978, so 26426 is deficient (13978 is less than 26426). Euler's totient φ(26426) = 12960 numbers up to 26426 share no factor with it.
- 4
The digits of 26426 add up to 20, and repeating that until one digit is left gives the digital root 2. The Collatz sequence (halve if even, else 3n+1) takes 77 steps to reach 1.
LaTeX source of the formulas on this page
\[ 26426 = 2 \times 73 \times 181 \]
26426 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 8 |
| Sum of divisors | 40404 |
| Euler totient φ(n) | 12960 |
| Square | 698333476 |
| Cube | 18454160436776 |
| Square root | 162.560758 |
| Digit sum / digital root | 20 / 2 |
| Collatz steps to 1 | 77 |
| Scientific notation | 2.6426 × |
26426 in other forms
| Form | Value |
|---|---|
| In words | twenty-six thousand four hundred and twenty-six |
| Binary (base 2) | 110011100111010 |
| Octal (base 8) | 63472 |
| Hexadecimal (base 16) | 673A |
| Base 3 | 1100020202 |
| As time | 26426 seconds = 7 h 20 min 26 s |
Is 26426 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (26426 ÷ 2 = 13213) | A number is divisible by 2 if the last digit is even (0, 2, 4, 6, 8). |
| 3 | No (remainder 2) | 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 | No (remainder 2) | 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 2) | 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 4) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 2) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 26426 a prime number?
No. 26426 = 2 × 73 × 181, so it is divisible by 2.
What are the factors of 26426?
1, 2, 73, 146, 181, 362, 13213, 26426.
What is 26426 in binary?
110011100111010 (hexadecimal 673A, octal 63472).
What is the square root of 26426?
About 162.5608.
Is 26426 divisible by 3?
No. Its digits add up to 20, which is not a multiple of 3.
What is special about the number 26426?
It is a composite number with 8 divisors.