The number 57313
57313 is a composite number with 4 divisors. Its prime factorisation is 37 × 1549. Divisors (4): 1, 37, 1549, 57313.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 57313: a semiprime: 37 × 1549, the product of two primes.
- 2
57313 is composite. Its prime factorisation is
- 3
The divisors add up to 58900; without 57313 itself that is 1587, so 57313 is deficient (1587 is less than 57313). Euler's totient φ(57313) = 55728 numbers up to 57313 share no factor with it.
- 4
The digits of 57313 add up to 19, and repeating that until one digit is left gives the digital root 1. The Collatz sequence (halve if even, else 3n+1) takes 135 steps to reach 1.
LaTeX source of the formulas on this page
\[ 57313 = 37 \times 1549 \]
57313 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 58900 |
| Euler totient φ(n) | 55728 |
| Square | 3284779969 |
| Cube | 188260594363297 |
| Square root | 239.401337 |
| Digit sum / digital root | 19 / 1 |
| Collatz steps to 1 | 135 |
| Scientific notation | 5.7313 × |
57313 in other forms
| Form | Value |
|---|---|
| In words | fifty-seven thousand three hundred and thirteen |
| Binary (base 2) | 1101111111100001 |
| Octal (base 8) | 157741 |
| Hexadecimal (base 16) | DFE1 |
| Base 3 | 2220121201 |
| As time | 57313 seconds = 15 h 55 min 13 s |
Is 57313 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 1) | 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 3) | A number is divisible by 5 if the last digit is 0 or 5. |
| 6 | No (remainder 1) | A number is divisible by 6 if it is divisible by both 2 and 3. |
| 7 | No (remainder 4) | 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 1) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 3) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 3) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 1) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 57313 a prime number?
No. 57313 = 37 × 1549, so it is divisible by 37.
What are the factors of 57313?
1, 37, 1549, 57313.
What is 57313 in binary?
1101111111100001 (hexadecimal DFE1, octal 157741).
What is the square root of 57313?
About 239.4013.
Is 57313 divisible by 3?
No. Its digits add up to 19, which is not a multiple of 3.
What is special about the number 57313?
57313 is a semiprime: 37 × 1549, the product of two primes.