The number 88090
88090 is a composite number with 16 divisors. Its prime factorisation is 2 × 5 × 23 × 383. Divisors (16): 1, 2, 5, 10, 23, 46, 115, 230, 383, 766, 1915, 3830, 8809, 17618, 44045, 88090.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
88090 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
88090 is composite. Its prime factorisation is
- 3
The divisors add up to 165888; without 88090 itself that is 77798, so 88090 is deficient (77798 is less than 88090). Euler's totient φ(88090) = 33616 numbers up to 88090 share no factor with it.
- 4
The digits of 88090 add up to 25, and repeating that until one digit is left gives the digital root 7. The Collatz sequence (halve if even, else 3n+1) takes 195 steps to reach 1.
LaTeX source of the formulas on this page
\[ 88090 = 2 \times 5 \times 23 \times 383 \]
88090 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 16 |
| Sum of divisors | 165888 |
| Euler totient φ(n) | 33616 |
| Square | 7759848100 |
| Cube | 683565019129000 |
| Square root | 296.799596 |
| Digit sum / digital root | 25 / 7 |
| Collatz steps to 1 | 195 |
| Scientific notation | 8.809 × |
88090 in other forms
| Form | Value |
|---|---|
| In words | eighty-eight thousand and ninety |
| Binary (base 2) | 10101100000011010 |
| Octal (base 8) | 254032 |
| Hexadecimal (base 16) | 1581A |
| Base 3 | 11110211121 |
| As time | 88090 seconds = 24 h 28 min 10 s |
Is 88090 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (88090 ÷ 2 = 44045) | 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 2) | A number is divisible by 4 if the last two digits make a multiple of 4. |
| 5 | Yes (88090 ÷ 5 = 17618) | A number is divisible by 5 if the last digit is 0 or 5. |
| 6 | No (remainder 4) | A number is divisible by 6 if it is divisible by both 2 and 3. |
| 7 | No (remainder 2) | 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 7) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | Yes (88090 ÷ 10 = 8809) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 2) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 10) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 88090 a prime number?
No. 88090 = 2 × 5 × 23 × 383, so it is divisible by 2.
What are the factors of 88090?
1, 2, 5, 10, 23, 46, 115, 230, 383, 766, 1915, 3830, 8809, 17618, 44045, 88090.
What is 88090 in binary?
10101100000011010 (hexadecimal 1581A, octal 254032).
What is the square root of 88090?
About 296.7996.
Is 88090 divisible by 3?
No. Its digits add up to 25, which is not a multiple of 3.
What is special about the number 88090?
It is a composite number with 16 divisors.