The number 26429
26429 is a composite number with 8 divisors. Its prime factorisation is 13 × 19 × 107. Divisors (8): 1, 13, 19, 107, 247, 1391, 2033, 26429.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
26429 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
26429 is composite. Its prime factorisation is
- 3
The divisors add up to 30240; without 26429 itself that is 3811, so 26429 is deficient (3811 is less than 26429). Euler's totient φ(26429) = 22896 numbers up to 26429 share no factor with it.
- 4
The digits of 26429 add up to 23, and repeating that until one digit is left gives the digital root 5. The Collatz sequence (halve if even, else 3n+1) takes 77 steps to reach 1.
LaTeX source of the formulas on this page
\[ 26429 = 13 \times 19 \times 107 \]
26429 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 8 |
| Sum of divisors | 30240 |
| Euler totient φ(n) | 22896 |
| Square | 698492041 |
| Cube | 18460446151589 |
| Square root | 162.569985 |
| Digit sum / digital root | 23 / 5 |
| Collatz steps to 1 | 77 |
| Scientific notation | 2.6429 × |
26429 in other forms
| Form | Value |
|---|---|
| In words | twenty-six thousand four hundred and twenty-nine |
| Binary (base 2) | 110011100111101 |
| Octal (base 8) | 63475 |
| Hexadecimal (base 16) | 673D |
| Base 3 | 1100020212 |
| As time | 26429 seconds = 7 h 20 min 29 s |
Is 26429 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | No (remainder 1) | 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 1) | A number is divisible by 4 if the last two digits make a multiple of 4. |
| 5 | No (remainder 4) | A number is divisible by 5 if the last digit is 0 or 5. |
| 6 | No (remainder 5) | 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 5) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 5) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 9) | 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 5) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 26429 a prime number?
No. 26429 = 13 × 19 × 107, so it is divisible by 13.
What are the factors of 26429?
1, 13, 19, 107, 247, 1391, 2033, 26429.
What is 26429 in binary?
110011100111101 (hexadecimal 673D, octal 63475).
What is the square root of 26429?
About 162.5700.
Is 26429 divisible by 3?
No. Its digits add up to 23, which is not a multiple of 3.
What is special about the number 26429?
It is a composite number with 8 divisors.