The number 97490
97490 is a composite number with 8 divisors. Its prime factorisation is 2 × 5 × 9749. Divisors (8): 1, 2, 5, 10, 9749, 19498, 48745, 97490.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
97490 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
97490 is composite. Its prime factorisation is
- 3
The divisors add up to 175500; without 97490 itself that is 78010, so 97490 is deficient (78010 is less than 97490). Euler's totient φ(97490) = 38992 numbers up to 97490 share no factor with it.
- 4
The digits of 97490 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 177 steps to reach 1.
LaTeX source of the formulas on this page
\[ 97490 = 2 \times 5 \times 9749 \]
97490 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 8 |
| Sum of divisors | 175500 |
| Euler totient φ(n) | 38992 |
| Square | 9504300100 |
| Cube | 926574216749000 |
| Square root | 312.233887 |
| Digit sum / digital root | 29 / 2 |
| Collatz steps to 1 | 177 |
| Scientific notation | 9.749 × |
97490 in other forms
| Form | Value |
|---|---|
| In words | ninety-seven thousand four hundred and ninety |
| Binary (base 2) | 10111110011010010 |
| Octal (base 8) | 276322 |
| Hexadecimal (base 16) | 17CD2 |
| Base 3 | 11221201202 |
| As time | 97490 seconds = 27 h 4 min 50 s |
Is 97490 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (97490 ÷ 2 = 48745) | 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 2) | A number is divisible by 4 if the last two digits make a multiple of 4. |
| 5 | Yes (97490 ÷ 5 = 19498) | A number is divisible by 5 if the last digit is 0 or 5. |
| 6 | No (remainder 2) | A number is divisible by 6 if it is divisible by both 2 and 3. |
| 7 | No (remainder 1) | 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 2) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | Yes (97490 ÷ 10 = 9749) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 8) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 2) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 97490 a prime number?
No. 97490 = 2 × 5 × 9749, so it is divisible by 2.
What are the factors of 97490?
1, 2, 5, 10, 9749, 19498, 48745, 97490.
What is 97490 in binary?
10111110011010010 (hexadecimal 17CD2, octal 276322).
What is the square root of 97490?
About 312.2339.
Is 97490 divisible by 3?
No. Its digits add up to 29, which is not a multiple of 3.
What is special about the number 97490?
It is a composite number with 8 divisors.