The number 90241
90241 is a composite number with 8 divisors. Its prime factorisation is 31 × 41 × 71. Divisors (8): 1, 31, 41, 71, 1271, 2201, 2911, 90241.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
90241 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
90241 is composite. Its prime factorisation is
- 3
The divisors add up to 96768; without 90241 itself that is 6527, so 90241 is deficient (6527 is less than 90241). Euler's totient φ(90241) = 84000 numbers up to 90241 share no factor with it.
- 4
The digits of 90241 add up to 16, and repeating that until one digit is left gives the digital root 7. The Collatz sequence (halve if even, else 3n+1) takes 102 steps to reach 1.
LaTeX source of the formulas on this page
\[ 90241 = 31 \times 41 \times 71 \]
90241 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 8 |
| Sum of divisors | 96768 |
| Euler totient φ(n) | 84000 |
| Square | 8143438081 |
| Cube | 734871995867521 |
| Square root | 300.401398 |
| Digit sum / digital root | 16 / 7 |
| Collatz steps to 1 | 102 |
| Scientific notation | 9.0241 × |
90241 in other forms
| Form | Value |
|---|---|
| In words | ninety thousand two hundred and forty-one |
| Binary (base 2) | 10110000010000001 |
| Octal (base 8) | 260201 |
| Hexadecimal (base 16) | 16081 |
| Base 3 | 11120210021 |
| As time | 90241 seconds = 25 h 4 min 1 s |
Is 90241 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 | 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 7) | 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 8) | 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 90241 a prime number?
No. 90241 = 31 × 41 × 71, so it is divisible by 31.
What are the factors of 90241?
1, 31, 41, 71, 1271, 2201, 2911, 90241.
What is 90241 in binary?
10110000010000001 (hexadecimal 16081, octal 260201).
What is the square root of 90241?
About 300.4014.
Is 90241 divisible by 3?
No. Its digits add up to 16, which is not a multiple of 3.
What is special about the number 90241?
It is a composite number with 8 divisors.