The number 97409
97409 is a composite number with 8 divisors. Its prime factorisation is 13 × 59 × 127. Divisors (8): 1, 13, 59, 127, 767, 1651, 7493, 97409.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
97409 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
97409 is composite. Its prime factorisation is
- 3
The divisors add up to 107520; without 97409 itself that is 10111, so 97409 is deficient (10111 is less than 97409). Euler's totient φ(97409) = 87696 numbers up to 97409 share no factor with it.
- 4
The digits of 97409 add up to 29, and repeating that until one digit is left gives the digital root 2. The Collatz sequence (halve if even, else 3n+1) takes 146 steps to reach 1.
LaTeX source of the formulas on this page
\[ 97409 = 13 \times 59 \times 127 \]
97409 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 8 |
| Sum of divisors | 107520 |
| Euler totient φ(n) | 87696 |
| Square | 9488513281 |
| Cube | 924266590188929 |
| Square root | 312.104149 |
| Digit sum / digital root | 29 / 2 |
| Collatz steps to 1 | 146 |
| Scientific notation | 9.7409 × |
97409 in other forms
| Form | Value |
|---|---|
| In words | ninety-seven thousand four hundred and nine |
| Binary (base 2) | 10111110010000001 |
| Octal (base 8) | 276201 |
| Hexadecimal (base 16) | 17C81 |
| Base 3 | 11221121202 |
| As time | 97409 seconds = 27 h 3 min 29 s |
Is 97409 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 2) | 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 4) | A number is divisible by 5 if the last digit is 0 or 5. |
| 6 | No (remainder 5) | A number is divisible by 6 if it is divisible by both 2 and 3. |
| 7 | No (remainder 4) | 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 2) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 9) | 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 5) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 97409 a prime number?
No. 97409 = 13 × 59 × 127, so it is divisible by 13.
What are the factors of 97409?
1, 13, 59, 127, 767, 1651, 7493, 97409.
What is 97409 in binary?
10111110010000001 (hexadecimal 17C81, octal 276201).
What is the square root of 97409?
About 312.1041.
Is 97409 divisible by 3?
No. Its digits add up to 29, which is not a multiple of 3.
What is special about the number 97409?
It is a composite number with 8 divisors.