The number 88742
88742 is a composite number with 4 divisors. Its prime factorisation is 2 × 44371. Divisors (4): 1, 2, 44371, 88742.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 88742: a semiprime: 2 × 44371, the product of two primes.
- 2
88742 is composite. Its prime factorisation is
- 3
The divisors add up to 133116; without 88742 itself that is 44374, so 88742 is deficient (44374 is less than 88742). Euler's totient φ(88742) = 44370 numbers up to 88742 share no factor with it.
- 4
The digits of 88742 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 94 steps to reach 1.
LaTeX source of the formulas on this page
\[ 88742 = 2 \times 44371 \]
88742 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 133116 |
| Euler totient φ(n) | 44370 |
| Square | 7875142564 |
| Cube | 698855901414488 |
| Square root | 297.895955 |
| Digit sum / digital root | 29 / 2 |
| Collatz steps to 1 | 94 |
| Scientific notation | 8.8742 × |
88742 in other forms
| Form | Value |
|---|---|
| In words | eighty-eight thousand seven hundred and forty-two |
| Binary (base 2) | 10101101010100110 |
| Octal (base 8) | 255246 |
| Hexadecimal (base 16) | 15AA6 |
| Base 3 | 11111201202 |
| As time | 88742 seconds = 24 h 39 min 2 s |
Is 88742 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (88742 ÷ 2 = 44371) | 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 | No (remainder 2) | 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 3) | 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 6) | 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 2) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 5) | 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 88742 a prime number?
No. 88742 = 2 × 44371, so it is divisible by 2.
What are the factors of 88742?
1, 2, 44371, 88742.
What is 88742 in binary?
10101101010100110 (hexadecimal 15AA6, octal 255246).
What is the square root of 88742?
About 297.8960.
Is 88742 divisible by 3?
No. Its digits add up to 29, which is not a multiple of 3.
What is special about the number 88742?
88742 is a semiprime: 2 × 44371, the product of two primes.