The number 42559
42559 is a composite number with 8 divisors. Its prime factorisation is 11 × 53 × 73. Divisors (8): 1, 11, 53, 73, 583, 803, 3869, 42559.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
42559 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
42559 is composite. Its prime factorisation is
- 3
The divisors add up to 47952; without 42559 itself that is 5393, so 42559 is deficient (5393 is less than 42559). Euler's totient φ(42559) = 37440 numbers up to 42559 share no factor with it.
- 4
The digits of 42559 add up to 25, and repeating that until one digit is left gives the digital root 7. The Collatz sequence (halve if even, else 3n+1) takes 62 steps to reach 1.
LaTeX source of the formulas on this page
\[ 42559 = 11 \times 53 \times 73 \]
42559 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 8 |
| Sum of divisors | 47952 |
| Euler totient φ(n) | 37440 |
| Square | 1811268481 |
| Cube | 77085775282879 |
| Square root | 206.298328 |
| Digit sum / digital root | 25 / 7 |
| Collatz steps to 1 | 62 |
| Scientific notation | 4.2559 × |
42559 in other forms
| Form | Value |
|---|---|
| In words | forty-two thousand five hundred and fifty-nine |
| Binary (base 2) | 1010011000111111 |
| Octal (base 8) | 123077 |
| Hexadecimal (base 16) | A63F |
| Base 3 | 2011101021 |
| As time | 42559 seconds = 11 h 49 min 19 s |
Is 42559 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 1) | A number is divisible by 3 if the digits add up to a multiple of 3. |
| 4 | No (remainder 3) | 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 1) | 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 7) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 7) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 9) | A number is divisible by 10 if the last digit is 0. |
| 11 | Yes (42559 ÷ 11 = 3869) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 7) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 42559 a prime number?
No. 42559 = 11 × 53 × 73, so it is divisible by 11.
What are the factors of 42559?
1, 11, 53, 73, 583, 803, 3869, 42559.
What is 42559 in binary?
1010011000111111 (hexadecimal A63F, octal 123077).
What is the square root of 42559?
About 206.2983.
Is 42559 divisible by 3?
No. Its digits add up to 25, which is not a multiple of 3.
What is special about the number 42559?
It is a composite number with 8 divisors.