The number 57426
57426 is a composite number with 16 divisors. Its prime factorisation is 2 × 3 × 17 × 563. Divisors (16): 1, 2, 3, 6, 17, 34, 51, 102, 563, 1126, 1689, 3378, 9571, 19142, 28713, 57426.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 57426: a happy number: repeatedly adding the squares of its digits reaches 1.
- 2
57426 is composite. Its prime factorisation is
- 3
The divisors add up to 121824; without 57426 itself that is 64398, so 57426 is abundant (64398 is more than 57426). Euler's totient φ(57426) = 17984 numbers up to 57426 share no factor with it.
- 4
The digits of 57426 add up to 24, and repeating that until one digit is left gives the digital root 6. The Collatz sequence (halve if even, else 3n+1) takes 104 steps to reach 1.
LaTeX source of the formulas on this page
\[ 57426 = 2 \times 3 \times 17 \times 563 \]
57426 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 16 |
| Sum of divisors | 121824 |
| Euler totient φ(n) | 17984 |
| Square | 3297745476 |
| Cube | 189376331704776 |
| Square root | 239.637226 |
| Digit sum / digital root | 24 / 6 |
| Collatz steps to 1 | 104 |
| Scientific notation | 5.7426 × |
57426 in other forms
| Form | Value |
|---|---|
| In words | fifty-seven thousand four hundred and twenty-six |
| Binary (base 2) | 1110000001010010 |
| Octal (base 8) | 160122 |
| Hexadecimal (base 16) | E052 |
| Base 3 | 2220202220 |
| As time | 57426 seconds = 15 h 57 min 6 s |
Is 57426 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (57426 ÷ 2 = 28713) | A number is divisible by 2 if the last digit is even (0, 2, 4, 6, 8). |
| 3 | Yes (57426 ÷ 3 = 19142) | 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 (57426 ÷ 6 = 9571) | 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 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 6) | 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 57426 a prime number?
No. 57426 = 2 × 3 × 17 × 563, so it is divisible by 2.
What are the factors of 57426?
1, 2, 3, 6, 17, 34, 51, 102, 563, 1126, 1689, 3378, 9571, 19142, 28713, 57426.
What is 57426 in binary?
1110000001010010 (hexadecimal E052, octal 160122).
What is the square root of 57426?
About 239.6372.
Is 57426 divisible by 3?
Yes. Its digits add up to 24, a multiple of 3.
What is special about the number 57426?
57426 is a happy number: repeatedly adding the squares of its digits reaches 1.