The number 46142
46142 is a composite number with 4 divisors. Its prime factorisation is 2 × 23071. Divisors (4): 1, 2, 23071, 46142.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 46142: a semiprime: 2 × 23071, the product of two primes.
- 2
46142 is composite. Its prime factorisation is
- 3
The divisors add up to 69216; without 46142 itself that is 23074, so 46142 is deficient (23074 is less than 46142). Euler's totient φ(46142) = 23070 numbers up to 46142 share no factor with it.
- 4
The digits of 46142 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 114 steps to reach 1.
LaTeX source of the formulas on this page
\[ 46142 = 2 \times 23071 \]
46142 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 69216 |
| Euler totient φ(n) | 23070 |
| Square | 2129084164 |
| Cube | 98240201495288 |
| Square root | 214.806890 |
| Digit sum / digital root | 17 / 8 |
| Collatz steps to 1 | 114 |
| Scientific notation | 4.6142 × |
46142 in other forms
| Form | Value |
|---|---|
| In words | forty-six thousand one hundred and forty-two |
| Binary (base 2) | 1011010000111110 |
| Octal (base 8) | 132076 |
| Hexadecimal (base 16) | B43E |
| Base 3 | 2100021222 |
| As time | 46142 seconds = 12 h 49 min 2 s |
Is 46142 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (46142 ÷ 2 = 23071) | 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 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 8) | 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 46142 a prime number?
No. 46142 = 2 × 23071, so it is divisible by 2.
What are the factors of 46142?
1, 2, 23071, 46142.
What is 46142 in binary?
1011010000111110 (hexadecimal B43E, octal 132076).
What is the square root of 46142?
About 214.8069.
Is 46142 divisible by 3?
No. Its digits add up to 17, which is not a multiple of 3.
What is special about the number 46142?
46142 is a semiprime: 2 × 23071, the product of two primes.