The number 88142
88142 is a composite number with 4 divisors. Its prime factorisation is 2 × 44071. Divisors (4): 1, 2, 44071, 88142.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 88142: a semiprime: 2 × 44071, the product of two primes.
- 2
88142 is composite. Its prime factorisation is
- 3
The divisors add up to 132216; without 88142 itself that is 44074, so 88142 is deficient (44074 is less than 88142). Euler's totient φ(88142) = 44070 numbers up to 88142 share no factor with it.
- 4
The digits of 88142 add up to 23, and repeating that until one digit is left gives the digital root 5. The Collatz sequence (halve if even, else 3n+1) takes 195 steps to reach 1.
LaTeX source of the formulas on this page
\[ 88142 = 2 \times 44071 \]
88142 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 132216 |
| Euler totient φ(n) | 44070 |
| Square | 7769012164 |
| Cube | 684776270159288 |
| Square root | 296.887184 |
| Digit sum / digital root | 23 / 5 |
| Collatz steps to 1 | 195 |
| Scientific notation | 8.8142 × |
88142 in other forms
| Form | Value |
|---|---|
| In words | eighty-eight thousand one hundred and forty-two |
| Binary (base 2) | 10101100001001110 |
| Octal (base 8) | 254116 |
| Hexadecimal (base 16) | 1584E |
| Base 3 | 11110220112 |
| As time | 88142 seconds = 24 h 29 min 2 s |
Is 88142 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (88142 ÷ 2 = 44071) | 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 5) | 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 5) | 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 10) | 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 88142 a prime number?
No. 88142 = 2 × 44071, so it is divisible by 2.
What are the factors of 88142?
1, 2, 44071, 88142.
What is 88142 in binary?
10101100001001110 (hexadecimal 1584E, octal 254116).
What is the square root of 88142?
About 296.8872.
Is 88142 divisible by 3?
No. Its digits add up to 23, which is not a multiple of 3.
What is special about the number 88142?
88142 is a semiprime: 2 × 44071, the product of two primes.