The number 42034
42034 is a composite number with 4 divisors. Its prime factorisation is 2 × 21017. Divisors (4): 1, 2, 21017, 42034.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 42034: a semiprime: 2 × 21017, the product of two primes.
- 2
42034 is composite. Its prime factorisation is
- 3
The divisors add up to 63054; without 42034 itself that is 21020, so 42034 is deficient (21020 is less than 42034). Euler's totient φ(42034) = 21016 numbers up to 42034 share no factor with it.
- 4
The digits of 42034 add up to 13, and repeating that until one digit is left gives the digital root 4. The Collatz sequence (halve if even, else 3n+1) takes 150 steps to reach 1.
LaTeX source of the formulas on this page
\[ 42034 = 2 \times 21017 \]
42034 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 63054 |
| Euler totient φ(n) | 21016 |
| Square | 1766857156 |
| Cube | 74268073695304 |
| Square root | 205.021950 |
| Digit sum / digital root | 13 / 4 |
| Collatz steps to 1 | 150 |
| Scientific notation | 4.2034 × |
42034 in other forms
| Form | Value |
|---|---|
| In words | forty-two thousand and thirty-four |
| Binary (base 2) | 1010010000110010 |
| Octal (base 8) | 122062 |
| Hexadecimal (base 16) | A432 |
| Base 3 | 2010122211 |
| As time | 42034 seconds = 11 h 40 min 34 s |
Is 42034 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (42034 ÷ 2 = 21017) | A number is divisible by 2 if the last digit is even (0, 2, 4, 6, 8). |
| 3 | No (remainder 1) | 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 4) | A number is divisible by 6 if it is divisible by both 2 and 3. |
| 7 | No (remainder 6) | 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 4) | 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 3) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 10) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 42034 a prime number?
No. 42034 = 2 × 21017, so it is divisible by 2.
What are the factors of 42034?
1, 2, 21017, 42034.
What is 42034 in binary?
1010010000110010 (hexadecimal A432, octal 122062).
What is the square root of 42034?
About 205.0220.
Is 42034 divisible by 3?
No. Its digits add up to 13, which is not a multiple of 3.
What is special about the number 42034?
42034 is a semiprime: 2 × 21017, the product of two primes.