The number 97431
97431 is a composite number with 8 divisors. Its prime factorisation is 3 × 47 × 691. Divisors (8): 1, 3, 47, 141, 691, 2073, 32477, 97431.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
97431 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
97431 is composite. Its prime factorisation is
- 3
The divisors add up to 132864; without 97431 itself that is 35433, so 97431 is deficient (35433 is less than 97431). Euler's totient φ(97431) = 63480 numbers up to 97431 share no factor with it.
- 4
The digits of 97431 add up to 24, and repeating that until one digit is left gives the digital root 6. The Collatz sequence (halve if even, else 3n+1) takes 66 steps to reach 1.
LaTeX source of the formulas on this page
\[ 97431 = 3 \times 47 \times 691 \]
97431 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 8 |
| Sum of divisors | 132864 |
| Euler totient φ(n) | 63480 |
| Square | 9492799761 |
| Cube | 924892973513991 |
| Square root | 312.139392 |
| Digit sum / digital root | 24 / 6 |
| Collatz steps to 1 | 66 |
| Scientific notation | 9.7431 × |
97431 in other forms
| Form | Value |
|---|---|
| In words | ninety-seven thousand four hundred and thirty-one |
| Binary (base 2) | 10111110010010111 |
| Octal (base 8) | 276227 |
| Hexadecimal (base 16) | 17C97 |
| Base 3 | 11221122120 |
| As time | 97431 seconds = 27 h 3 min 51 s |
Is 97431 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 | Yes (97431 ÷ 3 = 32477) | 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 3) | A number is divisible by 6 if it is divisible by both 2 and 3. |
| 7 | No (remainder 5) | 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 6) | 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 3) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 97431 a prime number?
No. 97431 = 3 × 47 × 691, so it is divisible by 3.
What are the factors of 97431?
1, 3, 47, 141, 691, 2073, 32477, 97431.
What is 97431 in binary?
10111110010010111 (hexadecimal 17C97, octal 276227).
What is the square root of 97431?
About 312.1394.
Is 97431 divisible by 3?
Yes. Its digits add up to 24, a multiple of 3.
What is special about the number 97431?
It is a composite number with 8 divisors.