The number 1426
1426 is a composite number with 8 divisors. Its prime factorisation is 2 × 23 × 31. Divisors (8): 1, 2, 23, 31, 46, 62, 713, 1426.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
1426 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
1426 is composite. Its prime factorisation is
- 3
The divisors add up to 2304; without 1426 itself that is 878, so 1426 is deficient (878 is less than 1426). Euler's totient φ(1426) = 660 numbers up to 1426 share no factor with it.
- 4
The digits of 1426 add up to 13, and repeating that until one digit is left gives the digital root 4. The Collatz sequence (halve if even, else 3n+1) takes 26 steps to reach 1.
LaTeX source of the formulas on this page
\[ 1426 = 2 \times 23 \times 31 \]
1426 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 8 |
| Sum of divisors | 2304 |
| Euler totient φ(n) | 660 |
| Square | 2033476 |
| Cube | 2899736776 |
| Square root | 37.762415 |
| Digit sum / digital root | 13 / 4 |
| Collatz steps to 1 | 26 |
| Scientific notation | 1.426 × |
1426 in other forms
| Form | Value |
|---|---|
| In words | one thousand four hundred and twenty-six |
| Roman numerals | MCDXXVI |
| Binary (base 2) | 10110010010 |
| Octal (base 8) | 2622 |
| Hexadecimal (base 16) | 592 |
| Base 3 | 1221211 |
| As time | 1426 seconds = 23 min 46 s |
Is 1426 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (1426 ÷ 2 = 713) | 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 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 4) | 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 7) | 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 1426 a prime number?
No. 1426 = 2 × 23 × 31, so it is divisible by 2.
What are the factors of 1426?
1, 2, 23, 31, 46, 62, 713, 1426.
What is 1426 in binary?
10110010010 (hexadecimal 592, octal 2622).
What is the square root of 1426?
About 37.7624.
What is 1426 in Roman numerals?
MCDXXVI.
Is 1426 divisible by 3?
No. Its digits add up to 13, which is not a multiple of 3.
What is special about the number 1426?
It is a composite number with 8 divisors.