The number 76426
76426 is a composite number with 16 divisors. Its prime factorisation is 2 × 7 × 53 × 103. Divisors (16): 1, 2, 7, 14, 53, 103, 106, 206, 371, 721, 742, 1442, 5459, 10918, 38213, 76426.
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How to work it out
- 1
76426 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
76426 is composite. Its prime factorisation is
- 3
The divisors add up to 134784; without 76426 itself that is 58358, so 76426 is deficient (58358 is less than 76426). Euler's totient φ(76426) = 31824 numbers up to 76426 share no factor with it.
- 4
The digits of 76426 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 107 steps to reach 1.
LaTeX source of the formulas on this page
\[ 76426 = 2 \times 7 \times 53 \times 103 \]
76426 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 16 |
| Sum of divisors | 134784 |
| Euler totient φ(n) | 31824 |
| Square | 5840933476 |
| Cube | 446399181836776 |
| Square root | 276.452528 |
| Digit sum / digital root | 25 / 7 |
| Collatz steps to 1 | 107 |
| Scientific notation | 7.6426 × |
76426 in other forms
| Form | Value |
|---|---|
| In words | seventy-six thousand four hundred and twenty-six |
| Binary (base 2) | 10010101010001010 |
| Octal (base 8) | 225212 |
| Hexadecimal (base 16) | 12A8A |
| Base 3 | 10212211121 |
| As time | 76426 seconds = 21 h 13 min 46 s |
Is 76426 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (76426 ÷ 2 = 38213) | 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 | Yes (76426 ÷ 7 = 10918) | 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 7) | 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 9) | 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 76426 a prime number?
No. 76426 = 2 × 7 × 53 × 103, so it is divisible by 2.
What are the factors of 76426?
1, 2, 7, 14, 53, 103, 106, 206, 371, 721, 742, 1442, 5459, 10918, 38213, 76426.
What is 76426 in binary?
10010101010001010 (hexadecimal 12A8A, octal 225212).
What is the square root of 76426?
About 276.4525.
Is 76426 divisible by 3?
No. Its digits add up to 25, which is not a multiple of 3.
What is special about the number 76426?
It is a composite number with 16 divisors.