The number 57997
57997 is a composite number with 4 divisors. Its prime factorisation is 59 × 983. Divisors (4): 1, 59, 983, 57997.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 57997: a semiprime: 59 × 983, the product of two primes.
- 2
57997 is composite. Its prime factorisation is
- 3
The divisors add up to 59040; without 57997 itself that is 1043, so 57997 is deficient (1043 is less than 57997). Euler's totient φ(57997) = 56956 numbers up to 57997 share no factor with it.
- 4
The digits of 57997 add up to 37, and repeating that until one digit is left gives the digital root 1. The Collatz sequence (halve if even, else 3n+1) takes 73 steps to reach 1.
LaTeX source of the formulas on this page
\[ 57997 = 59 \times 983 \]
57997 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 59040 |
| Euler totient φ(n) | 56956 |
| Square | 3363652009 |
| Cube | 195081725565973 |
| Square root | 240.825663 |
| Digit sum / digital root | 37 / 1 |
| Collatz steps to 1 | 73 |
| Scientific notation | 5.7997 × |
57997 in other forms
| Form | Value |
|---|---|
| In words | fifty-seven thousand nine hundred and ninety-seven |
| Binary (base 2) | 1110001010001101 |
| Octal (base 8) | 161215 |
| Hexadecimal (base 16) | E28D |
| Base 3 | 2221120001 |
| As time | 57997 seconds = 16 h 6 min 37 s |
Is 57997 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 2) | 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 5) | 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 7) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 5) | 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 57997 a prime number?
No. 57997 = 59 × 983, so it is divisible by 59.
What are the factors of 57997?
1, 59, 983, 57997.
What is 57997 in binary?
1110001010001101 (hexadecimal E28D, octal 161215).
What is the square root of 57997?
About 240.8257.
Is 57997 divisible by 3?
No. Its digits add up to 37, which is not a multiple of 3.
What is special about the number 57997?
57997 is a semiprime: 59 × 983, the product of two primes.