The number 42094
42094 is a composite number with 8 divisors. Its prime factorisation is 2 × 13 × 1619. Divisors (8): 1, 2, 13, 26, 1619, 3238, 21047, 42094.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
42094 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
42094 is composite. Its prime factorisation is
- 3
The divisors add up to 68040; without 42094 itself that is 25946, so 42094 is deficient (25946 is less than 42094). Euler's totient φ(42094) = 19416 numbers up to 42094 share no factor with it.
- 4
The digits of 42094 add up to 19, and repeating that until one digit is left gives the digital root 1. The Collatz sequence (halve if even, else 3n+1) takes 181 steps to reach 1.
LaTeX source of the formulas on this page
\[ 42094 = 2 \times 13 \times 1619 \]
42094 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 8 |
| Sum of divisors | 68040 |
| Euler totient φ(n) | 19416 |
| Square | 1771904836 |
| Cube | 74586562166584 |
| Square root | 205.168224 |
| Digit sum / digital root | 19 / 1 |
| Collatz steps to 1 | 181 |
| Scientific notation | 4.2094 × |
42094 in other forms
| Form | Value |
|---|---|
| In words | forty-two thousand and ninety-four |
| Binary (base 2) | 1010010001101110 |
| Octal (base 8) | 122156 |
| Hexadecimal (base 16) | A46E |
| Base 3 | 2010202001 |
| As time | 42094 seconds = 11 h 41 min 34 s |
Is 42094 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (42094 ÷ 2 = 21047) | 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 3) | 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 1) | 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 8) | 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 42094 a prime number?
No. 42094 = 2 × 13 × 1619, so it is divisible by 2.
What are the factors of 42094?
1, 2, 13, 26, 1619, 3238, 21047, 42094.
What is 42094 in binary?
1010010001101110 (hexadecimal A46E, octal 122156).
What is the square root of 42094?
About 205.1682.
Is 42094 divisible by 3?
No. Its digits add up to 19, which is not a multiple of 3.
What is special about the number 42094?
It is a composite number with 8 divisors.