The number 97321
97321 is a composite number with 4 divisors. Its prime factorisation is 7 × 13903. Divisors (4): 1, 7, 13903, 97321.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 97321: a semiprime: 7 × 13903, the product of two primes.
- 2
97321 is composite. Its prime factorisation is
- 3
The divisors add up to 111232; without 97321 itself that is 13911, so 97321 is deficient (13911 is less than 97321). Euler's totient φ(97321) = 83412 numbers up to 97321 share no factor with it.
- 4
The digits of 97321 add up to 22, and repeating that until one digit is left gives the digital root 4. The Collatz sequence (halve if even, else 3n+1) takes 190 steps to reach 1.
LaTeX source of the formulas on this page
\[ 97321 = 7 \times 13903 \]
97321 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 111232 |
| Euler totient φ(n) | 83412 |
| Square | 9471377041 |
| Cube | 921763885007161 |
| Square root | 311.963139 |
| Digit sum / digital root | 22 / 4 |
| Collatz steps to 1 | 190 |
| Scientific notation | 9.7321 × |
97321 in other forms
| Form | Value |
|---|---|
| In words | ninety-seven thousand three hundred and twenty-one |
| Binary (base 2) | 10111110000101001 |
| Octal (base 8) | 276051 |
| Hexadecimal (base 16) | 17C29 |
| Base 3 | 11221111111 |
| As time | 97321 seconds = 27 h 2 min 1 s |
Is 97321 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 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 | Yes (97321 ÷ 7 = 13903) | 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 4) | 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 4) | 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 97321 a prime number?
No. 97321 = 7 × 13903, so it is divisible by 7.
What are the factors of 97321?
1, 7, 13903, 97321.
What is 97321 in binary?
10111110000101001 (hexadecimal 17C29, octal 276051).
What is the square root of 97321?
About 311.9631.
Is 97321 divisible by 3?
No. Its digits add up to 22, which is not a multiple of 3.
What is special about the number 97321?
97321 is a semiprime: 7 × 13903, the product of two primes.