The number 57322
57322 is a composite number with 4 divisors. Its prime factorisation is 2 × 28661. Divisors (4): 1, 2, 28661, 57322.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 57322: a happy number: repeatedly adding the squares of its digits reaches 1; a semiprime: 2 × 28661, the product of two primes.
- 2
57322 is composite. Its prime factorisation is
- 3
The divisors add up to 85986; without 57322 itself that is 28664, so 57322 is deficient (28664 is less than 57322). Euler's totient φ(57322) = 28660 numbers up to 57322 share no factor with it.
- 4
The digits of 57322 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 104 steps to reach 1.
LaTeX source of the formulas on this page
\[ 57322 = 2 \times 28661 \]
57322 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 85986 |
| Euler totient φ(n) | 28660 |
| Square | 3285811684 |
| Cube | 188349297350248 |
| Square root | 239.420133 |
| Digit sum / digital root | 19 / 1 |
| Collatz steps to 1 | 104 |
| Scientific notation | 5.7322 × |
57322 in other forms
| Form | Value |
|---|---|
| In words | fifty-seven thousand three hundred and twenty-two |
| Binary (base 2) | 1101111111101010 |
| Octal (base 8) | 157752 |
| Hexadecimal (base 16) | DFEA |
| Base 3 | 2220122001 |
| As time | 57322 seconds = 15 h 55 min 22 s |
Is 57322 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (57322 ÷ 2 = 28661) | 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 2) | 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 4) | A number is divisible by 6 if it is divisible by both 2 and 3. |
| 7 | No (remainder 6) | 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 2) | 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 2) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 1) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 10) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 57322 a prime number?
No. 57322 = 2 × 28661, so it is divisible by 2.
What are the factors of 57322?
1, 2, 28661, 57322.
What is 57322 in binary?
1101111111101010 (hexadecimal DFEA, octal 157752).
What is the square root of 57322?
About 239.4201.
Is 57322 divisible by 3?
No. Its digits add up to 19, which is not a multiple of 3.
What is special about the number 57322?
57322 is a happy number: repeatedly adding the squares of its digits reaches 1; a semiprime: 2 × 28661, the product of two primes.