The number 87342
87342 is a composite number with 8 divisors. Its prime factorisation is 2 × 3 × 14557. Divisors (8): 1, 2, 3, 6, 14557, 29114, 43671, 87342.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
87342 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
87342 is composite. Its prime factorisation is
- 3
The divisors add up to 174696; without 87342 itself that is 87354, so 87342 is abundant (87354 is more than 87342). Euler's totient φ(87342) = 29112 numbers up to 87342 share no factor with it.
- 4
The digits of 87342 add up to 24, and repeating that until one digit is left gives the digital root 6. The Collatz sequence (halve if even, else 3n+1) takes 71 steps to reach 1.
LaTeX source of the formulas on this page
\[ 87342 = 2 \times 3 \times 14557 \]
87342 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 8 |
| Sum of divisors | 174696 |
| Euler totient φ(n) | 29112 |
| Square | 7628624964 |
| Cube | 666299361605688 |
| Square root | 295.536800 |
| Digit sum / digital root | 24 / 6 |
| Collatz steps to 1 | 71 |
| Scientific notation | 8.7342 × |
87342 in other forms
| Form | Value |
|---|---|
| In words | eighty-seven thousand three hundred and forty-two |
| Binary (base 2) | 10101010100101110 |
| Octal (base 8) | 252456 |
| Hexadecimal (base 16) | 1552E |
| Base 3 | 11102210220 |
| As time | 87342 seconds = 24 h 15 min 42 s |
Is 87342 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (87342 ÷ 2 = 43671) | A number is divisible by 2 if the last digit is even (0, 2, 4, 6, 8). |
| 3 | Yes (87342 ÷ 3 = 29114) | 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 | Yes (87342 ÷ 6 = 14557) | 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 6) | 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 2) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 6) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 87342 a prime number?
No. 87342 = 2 × 3 × 14557, so it is divisible by 2.
What are the factors of 87342?
1, 2, 3, 6, 14557, 29114, 43671, 87342.
What is 87342 in binary?
10101010100101110 (hexadecimal 1552E, octal 252456).
What is the square root of 87342?
About 295.5368.
Is 87342 divisible by 3?
Yes. Its digits add up to 24, a multiple of 3.
What is special about the number 87342?
It is a composite number with 8 divisors.