The number 42526
42526 is a composite number with 8 divisors. Its prime factorisation is 2 × 11 × 1933. Divisors (8): 1, 2, 11, 22, 1933, 3866, 21263, 42526.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
42526 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
42526 is composite. Its prime factorisation is
- 3
The divisors add up to 69624; without 42526 itself that is 27098, so 42526 is deficient (27098 is less than 42526). Euler's totient φ(42526) = 19320 numbers up to 42526 share no factor with it.
- 4
The digits of 42526 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 57 steps to reach 1.
LaTeX source of the formulas on this page
\[ 42526 = 2 \times 11 \times 1933 \]
42526 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 8 |
| Sum of divisors | 69624 |
| Euler totient φ(n) | 19320 |
| Square | 1808460676 |
| Cube | 76906598707576 |
| Square root | 206.218331 |
| Digit sum / digital root | 19 / 1 |
| Collatz steps to 1 | 57 |
| Scientific notation | 4.2526 × |
42526 in other forms
| Form | Value |
|---|---|
| In words | forty-two thousand five hundred and twenty-six |
| Binary (base 2) | 1010011000011110 |
| Octal (base 8) | 123036 |
| Hexadecimal (base 16) | A61E |
| Base 3 | 2011100001 |
| As time | 42526 seconds = 11 h 48 min 46 s |
Is 42526 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (42526 ÷ 2 = 21263) | 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 1) | 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 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 1) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 6) | A number is divisible by 10 if the last digit is 0. |
| 11 | Yes (42526 ÷ 11 = 3866) | 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 42526 a prime number?
No. 42526 = 2 × 11 × 1933, so it is divisible by 2.
What are the factors of 42526?
1, 2, 11, 22, 1933, 3866, 21263, 42526.
What is 42526 in binary?
1010011000011110 (hexadecimal A61E, octal 123036).
What is the square root of 42526?
About 206.2183.
Is 42526 divisible by 3?
No. Its digits add up to 19, which is not a multiple of 3.
What is special about the number 42526?
It is a composite number with 8 divisors.