The number 56427
56427 is a composite number with 8 divisors. Its prime factorisation is 3 × 7 × 2687. Divisors (8): 1, 3, 7, 21, 2687, 8061, 18809, 56427.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 56427: a happy number: repeatedly adding the squares of its digits reaches 1.
- 2
56427 is composite. Its prime factorisation is
- 3
The divisors add up to 86016; without 56427 itself that is 29589, so 56427 is deficient (29589 is less than 56427). Euler's totient φ(56427) = 32232 numbers up to 56427 share no factor with it.
- 4
The digits of 56427 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 60 steps to reach 1.
LaTeX source of the formulas on this page
\[ 56427 = 3 \times 7 \times 2687 \]
56427 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 8 |
| Sum of divisors | 86016 |
| Euler totient φ(n) | 32232 |
| Square | 3184006329 |
| Cube | 179663925126483 |
| Square root | 237.543680 |
| Digit sum / digital root | 24 / 6 |
| Collatz steps to 1 | 60 |
| Scientific notation | 5.6427 × |
56427 in other forms
| Form | Value |
|---|---|
| In words | fifty-six thousand four hundred and twenty-seven |
| Binary (base 2) | 1101110001101011 |
| Octal (base 8) | 156153 |
| Hexadecimal (base 16) | DC6B |
| Base 3 | 2212101220 |
| As time | 56427 seconds = 15 h 40 min 27 s |
Is 56427 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 (56427 ÷ 3 = 18809) | 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 3) | A number is divisible by 6 if it is divisible by both 2 and 3. |
| 7 | Yes (56427 ÷ 7 = 8061) | 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 6) | 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 3) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 56427 a prime number?
No. 56427 = 3 × 7 × 2687, so it is divisible by 3.
What are the factors of 56427?
1, 3, 7, 21, 2687, 8061, 18809, 56427.
What is 56427 in binary?
1101110001101011 (hexadecimal DC6B, octal 156153).
What is the square root of 56427?
About 237.5437.
Is 56427 divisible by 3?
Yes. Its digits add up to 24, a multiple of 3.
What is special about the number 56427?
56427 is a happy number: repeatedly adding the squares of its digits reaches 1.