The number 42162
42162 is a composite number with 8 divisors. Its prime factorisation is 2 × 3 × 7027. Divisors (8): 1, 2, 3, 6, 7027, 14054, 21081, 42162.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
42162 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
42162 is composite. Its prime factorisation is
- 3
The divisors add up to 84336; without 42162 itself that is 42174, so 42162 is abundant (42174 is more than 42162). Euler's totient φ(42162) = 14052 numbers up to 42162 share no factor with it.
- 4
The digits of 42162 add up to 15, and repeating that until one digit is left gives the digital root 6. The Collatz sequence (halve if even, else 3n+1) takes 194 steps to reach 1.
LaTeX source of the formulas on this page
\[ 42162 = 2 \times 3 \times 7027 \]
42162 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 8 |
| Sum of divisors | 84336 |
| Euler totient φ(n) | 14052 |
| Square | 1777634244 |
| Cube | 74948614995528 |
| Square root | 205.333874 |
| Digit sum / digital root | 15 / 6 |
| Collatz steps to 1 | 194 |
| Scientific notation | 4.2162 × |
42162 in other forms
| Form | Value |
|---|---|
| In words | forty-two thousand one hundred and sixty-two |
| Binary (base 2) | 1010010010110010 |
| Octal (base 8) | 122262 |
| Hexadecimal (base 16) | A4B2 |
| Base 3 | 2010211120 |
| As time | 42162 seconds = 11 h 42 min 42 s |
Is 42162 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (42162 ÷ 2 = 21081) | A number is divisible by 2 if the last digit is even (0, 2, 4, 6, 8). |
| 3 | Yes (42162 ÷ 3 = 14054) | 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 (42162 ÷ 6 = 7027) | A number is divisible by 6 if it is divisible by both 2 and 3. |
| 7 | No (remainder 1) | 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 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 10) | 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 42162 a prime number?
No. 42162 = 2 × 3 × 7027, so it is divisible by 2.
What are the factors of 42162?
1, 2, 3, 6, 7027, 14054, 21081, 42162.
What is 42162 in binary?
1010010010110010 (hexadecimal A4B2, octal 122262).
What is the square root of 42162?
About 205.3339.
Is 42162 divisible by 3?
Yes. Its digits add up to 15, a multiple of 3.
What is special about the number 42162?
It is a composite number with 8 divisors.