The number 42134
42134 is a composite number with 4 divisors. Its prime factorisation is 2 × 21067. Divisors (4): 1, 2, 21067, 42134.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 42134: a semiprime: 2 × 21067, the product of two primes.
- 2
42134 is composite. Its prime factorisation is
- 3
The divisors add up to 63204; without 42134 itself that is 21070, so 42134 is deficient (21070 is less than 42134). Euler's totient φ(42134) = 21066 numbers up to 42134 share no factor with it.
- 4
The digits of 42134 add up to 14, and repeating that until one digit is left gives the digital root 5. The Collatz sequence (halve if even, else 3n+1) takes 44 steps to reach 1.
LaTeX source of the formulas on this page
\[ 42134 = 2 \times 21067 \]
42134 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 63204 |
| Euler totient φ(n) | 21066 |
| Square | 1775273956 |
| Cube | 74799392862104 |
| Square root | 205.265681 |
| Digit sum / digital root | 14 / 5 |
| Collatz steps to 1 | 44 |
| Scientific notation | 4.2134 × |
42134 in other forms
| Form | Value |
|---|---|
| In words | forty-two thousand one hundred and thirty-four |
| Binary (base 2) | 1010010010010110 |
| Octal (base 8) | 122226 |
| Hexadecimal (base 16) | A496 |
| Base 3 | 2010210112 |
| As time | 42134 seconds = 11 h 42 min 14 s |
Is 42134 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (42134 ÷ 2 = 21067) | 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 4) | 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 5) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 4) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 4) | 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 42134 a prime number?
No. 42134 = 2 × 21067, so it is divisible by 2.
What are the factors of 42134?
1, 2, 21067, 42134.
What is 42134 in binary?
1010010010010110 (hexadecimal A496, octal 122226).
What is the square root of 42134?
About 205.2657.
Is 42134 divisible by 3?
No. Its digits add up to 14, which is not a multiple of 3.
What is special about the number 42134?
42134 is a semiprime: 2 × 21067, the product of two primes.