The number 56537
56537 is a composite number with 4 divisors. Its prime factorisation is 13 × 4349. Divisors (4): 1, 13, 4349, 56537.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 56537: a semiprime: 13 × 4349, the product of two primes.
- 2
56537 is composite. Its prime factorisation is
- 3
The divisors add up to 60900; without 56537 itself that is 4363, so 56537 is deficient (4363 is less than 56537). Euler's totient φ(56537) = 52176 numbers up to 56537 share no factor with it.
- 4
The digits of 56537 add up to 26, and repeating that until one digit is left gives the digital root 8. The Collatz sequence (halve if even, else 3n+1) takes 60 steps to reach 1.
LaTeX source of the formulas on this page
\[ 56537 = 13 \times 4349 \]
56537 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 60900 |
| Euler totient φ(n) | 52176 |
| Square | 3196432369 |
| Cube | 180716696846153 |
| Square root | 237.775104 |
| Digit sum / digital root | 26 / 8 |
| Collatz steps to 1 | 60 |
| Scientific notation | 5.6537 × |
56537 in other forms
| Form | Value |
|---|---|
| In words | fifty-six thousand five hundred and thirty-seven |
| Binary (base 2) | 1101110011011001 |
| Octal (base 8) | 156331 |
| Hexadecimal (base 16) | DCD9 |
| Base 3 | 2212112222 |
| As time | 56537 seconds = 15 h 42 min 17 s |
Is 56537 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 2) | A number is divisible by 3 if the digits add up to a multiple of 3. |
| 4 | No (remainder 1) | 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 5) | 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 1) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 8) | 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 5) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 56537 a prime number?
No. 56537 = 13 × 4349, so it is divisible by 13.
What are the factors of 56537?
1, 13, 4349, 56537.
What is 56537 in binary?
1101110011011001 (hexadecimal DCD9, octal 156331).
What is the square root of 56537?
About 237.7751.
Is 56537 divisible by 3?
No. Its digits add up to 26, which is not a multiple of 3.
What is special about the number 56537?
56537 is a semiprime: 13 × 4349, the product of two primes.