The number 16426
16426 is a composite number with 8 divisors. Its prime factorisation is 2 × 43 × 191. Divisors (8): 1, 2, 43, 86, 191, 382, 8213, 16426.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
16426 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
16426 is composite. Its prime factorisation is
- 3
The divisors add up to 25344; without 16426 itself that is 8918, so 16426 is deficient (8918 is less than 16426). Euler's totient φ(16426) = 7980 numbers up to 16426 share no factor with it.
- 4
The digits of 16426 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 40 steps to reach 1.
LaTeX source of the formulas on this page
\[ 16426 = 2 \times 43 \times 191 \]
16426 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 8 |
| Sum of divisors | 25344 |
| Euler totient φ(n) | 7980 |
| Square | 269813476 |
| Cube | 4431956156776 |
| Square root | 128.163957 |
| Digit sum / digital root | 19 / 1 |
| Collatz steps to 1 | 40 |
| Scientific notation | 1.6426 × |
16426 in other forms
| Form | Value |
|---|---|
| In words | sixteen thousand four hundred and twenty-six |
| Binary (base 2) | 100000000101010 |
| Octal (base 8) | 40052 |
| Hexadecimal (base 16) | 402A |
| Base 3 | 211112101 |
| As time | 16426 seconds = 4 h 33 min 46 s |
Is 16426 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (16426 ÷ 2 = 8213) | 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 4) | 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 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 | No (remainder 3) | 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 16426 a prime number?
No. 16426 = 2 × 43 × 191, so it is divisible by 2.
What are the factors of 16426?
1, 2, 43, 86, 191, 382, 8213, 16426.
What is 16426 in binary?
100000000101010 (hexadecimal 402A, octal 40052).
What is the square root of 16426?
About 128.1640.
Is 16426 divisible by 3?
No. Its digits add up to 19, which is not a multiple of 3.
What is special about the number 16426?
It is a composite number with 8 divisors.