The number 71426
71426 is a composite number with 8 divisors. Its prime factorisation is 2 × 71 × 503. Divisors (8): 1, 2, 71, 142, 503, 1006, 35713, 71426.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
71426 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
71426 is composite. Its prime factorisation is
- 3
The divisors add up to 108864; without 71426 itself that is 37438, so 71426 is deficient (37438 is less than 71426). Euler's totient φ(71426) = 35140 numbers up to 71426 share no factor with it.
- 4
The digits of 71426 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 125 steps to reach 1.
LaTeX source of the formulas on this page
\[ 71426 = 2 \times 71 \times 503 \]
71426 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 8 |
| Sum of divisors | 108864 |
| Euler totient φ(n) | 35140 |
| Square | 5101673476 |
| Cube | 364392129696776 |
| Square root | 267.256431 |
| Digit sum / digital root | 20 / 2 |
| Collatz steps to 1 | 125 |
| Scientific notation | 7.1426 × |
71426 in other forms
| Form | Value |
|---|---|
| In words | seventy-one thousand four hundred and twenty-six |
| Binary (base 2) | 10001011100000010 |
| Octal (base 8) | 213402 |
| Hexadecimal (base 16) | 11702 |
| Base 3 | 10121222102 |
| As time | 71426 seconds = 19 h 50 min 26 s |
Is 71426 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (71426 ÷ 2 = 35713) | 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 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 2) | A number is divisible by 6 if it is divisible by both 2 and 3. |
| 7 | No (remainder 5) | 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 2) | 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 | No (remainder 3) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 2) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 71426 a prime number?
No. 71426 = 2 × 71 × 503, so it is divisible by 2.
What are the factors of 71426?
1, 2, 71, 142, 503, 1006, 35713, 71426.
What is 71426 in binary?
10001011100000010 (hexadecimal 11702, octal 213402).
What is the square root of 71426?
About 267.2564.
Is 71426 divisible by 3?
No. Its digits add up to 20, which is not a multiple of 3.
What is special about the number 71426?
It is a composite number with 8 divisors.