The number 42617
42617 is a composite number with 4 divisors. Its prime factorisation is 19 × 2243. Divisors (4): 1, 19, 2243, 42617.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 42617: a semiprime: 19 × 2243, the product of two primes.
- 2
42617 is composite. Its prime factorisation is
- 3
The divisors add up to 44880; without 42617 itself that is 2263, so 42617 is deficient (2263 is less than 42617). Euler's totient φ(42617) = 40356 numbers up to 42617 share no factor with it.
- 4
The digits of 42617 add up to 20, and repeating that until one digit is left gives the digital root 2. The Collatz sequence (halve if even, else 3n+1) takes 150 steps to reach 1.
LaTeX source of the formulas on this page
\[ 42617 = 19 \times 2243 \]
42617 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 44880 |
| Euler totient φ(n) | 40356 |
| Square | 1816208689 |
| Cube | 77401365699113 |
| Square root | 206.438853 |
| Digit sum / digital root | 20 / 2 |
| Collatz steps to 1 | 150 |
| Scientific notation | 4.2617 × |
42617 in other forms
| Form | Value |
|---|---|
| In words | forty-two thousand six hundred and seventeen |
| Binary (base 2) | 1010011001111001 |
| Octal (base 8) | 123171 |
| Hexadecimal (base 16) | A679 |
| Base 3 | 2011110102 |
| As time | 42617 seconds = 11 h 50 min 17 s |
Is 42617 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | No (remainder 1) | 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 1) | 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 5) | 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 1) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 2) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 7) | 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 5) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 42617 a prime number?
No. 42617 = 19 × 2243, so it is divisible by 19.
What are the factors of 42617?
1, 19, 2243, 42617.
What is 42617 in binary?
1010011001111001 (hexadecimal A679, octal 123171).
What is the square root of 42617?
About 206.4389.
Is 42617 divisible by 3?
No. Its digits add up to 20, which is not a multiple of 3.
What is special about the number 42617?
42617 is a semiprime: 19 × 2243, the product of two primes.