The number 57031
57031 is a composite number with 8 divisors. Its prime factorisation is 13 × 41 × 107. Divisors (8): 1, 13, 41, 107, 533, 1391, 4387, 57031.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
57031 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
57031 is composite. Its prime factorisation is
- 3
The divisors add up to 63504; without 57031 itself that is 6473, so 57031 is deficient (6473 is less than 57031). Euler's totient φ(57031) = 50880 numbers up to 57031 share no factor with it.
- 4
The digits of 57031 add up to 16, and repeating that until one digit is left gives the digital root 7. The Collatz sequence (halve if even, else 3n+1) takes 166 steps to reach 1.
LaTeX source of the formulas on this page
\[ 57031 = 13 \times 41 \times 107 \]
57031 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 8 |
| Sum of divisors | 63504 |
| Euler totient φ(n) | 50880 |
| Square | 3252534961 |
| Cube | 185495321360791 |
| Square root | 238.811641 |
| Digit sum / digital root | 16 / 7 |
| Collatz steps to 1 | 166 |
| Scientific notation | 5.7031 × |
57031 in other forms
| Form | Value |
|---|---|
| In words | fifty-seven thousand and thirty-one |
| Binary (base 2) | 1101111011000111 |
| Octal (base 8) | 157307 |
| Hexadecimal (base 16) | DEC7 |
| Base 3 | 2220020021 |
| As time | 57031 seconds = 15 h 50 min 31 s |
Is 57031 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 3) | 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 1) | A number is divisible by 6 if it is divisible by both 2 and 3. |
| 7 | No (remainder 2) | 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 7) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 7) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 1) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 7) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 7) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 57031 a prime number?
No. 57031 = 13 × 41 × 107, so it is divisible by 13.
What are the factors of 57031?
1, 13, 41, 107, 533, 1391, 4387, 57031.
What is 57031 in binary?
1101111011000111 (hexadecimal DEC7, octal 157307).
What is the square root of 57031?
About 238.8116.
Is 57031 divisible by 3?
No. Its digits add up to 16, which is not a multiple of 3.
What is special about the number 57031?
It is a composite number with 8 divisors.