The number 64142
64142 is a composite number with 8 divisors. Its prime factorisation is 2 × 13 × 2467. Divisors (8): 1, 2, 13, 26, 2467, 4934, 32071, 64142.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
64142 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
64142 is composite. Its prime factorisation is
- 3
The divisors add up to 103656; without 64142 itself that is 39514, so 64142 is deficient (39514 is less than 64142). Euler's totient φ(64142) = 29592 numbers up to 64142 share no factor with it.
- 4
The digits of 64142 add up to 17, and repeating that until one digit is left gives the digital root 8. The Collatz sequence (halve if even, else 3n+1) takes 86 steps to reach 1.
LaTeX source of the formulas on this page
\[ 64142 = 2 \times 13 \times 2467 \]
64142 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 8 |
| Sum of divisors | 103656 |
| Euler totient φ(n) | 29592 |
| Square | 4114196164 |
| Cube | 263892770351288 |
| Square root | 253.262709 |
| Digit sum / digital root | 17 / 8 |
| Collatz steps to 1 | 86 |
| Scientific notation | 6.4142 × |
64142 in other forms
| Form | Value |
|---|---|
| In words | sixty-four thousand one hundred and forty-two |
| Binary (base 2) | 1111101010001110 |
| Octal (base 8) | 175216 |
| Hexadecimal (base 16) | FA8E |
| Base 3 | 10020222122 |
| As time | 64142 seconds = 17 h 49 min 2 s |
Is 64142 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (64142 ÷ 2 = 32071) | 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 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 6) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 8) | 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 1) | 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 64142 a prime number?
No. 64142 = 2 × 13 × 2467, so it is divisible by 2.
What are the factors of 64142?
1, 2, 13, 26, 2467, 4934, 32071, 64142.
What is 64142 in binary?
1111101010001110 (hexadecimal FA8E, octal 175216).
What is the square root of 64142?
About 253.2627.
Is 64142 divisible by 3?
No. Its digits add up to 17, which is not a multiple of 3.
What is special about the number 64142?
It is a composite number with 8 divisors.