The number 26478
26478 is a composite number with 12 divisors. Its prime factorisation is 2 × × 1471. Divisors (12): 1, 2, 3, 6, 9, 18, 1471, 2942, 4413, 8826, 13239, 26478.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
26478 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
26478 is composite. Its prime factorisation is
- 3
The divisors add up to 57408; without 26478 itself that is 30930, so 26478 is abundant (30930 is more than 26478). Euler's totient φ(26478) = 8820 numbers up to 26478 share no factor with it.
- 4
The digits of 26478 add up to 27, and repeating that until one digit is left gives the digital root 9. The Collatz sequence (halve if even, else 3n+1) takes 139 steps to reach 1.
LaTeX source of the formulas on this page
\[ 26478 = 2 \times 3^{2} \times 1471 \]26478 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 12 |
| Sum of divisors | 57408 |
| Euler totient φ(n) | 8820 |
| Square | 701084484 |
| Cube | 18563314967352 |
| Square root | 162.720619 (= 3√2942) |
| Digit sum / digital root | 27 / 9 |
| Collatz steps to 1 | 139 |
| Scientific notation | 2.6478 × |
26478 in other forms
| Form | Value |
|---|---|
| In words | twenty-six thousand four hundred and seventy-eight |
| Binary (base 2) | 110011101101110 |
| Octal (base 8) | 63556 |
| Hexadecimal (base 16) | 676E |
| Base 3 | 1100022200 |
| As time | 26478 seconds = 7 h 21 min 18 s |
Is 26478 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (26478 ÷ 2 = 13239) | A number is divisible by 2 if the last digit is even (0, 2, 4, 6, 8). |
| 3 | Yes (26478 ÷ 3 = 8826) | 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 3) | A number is divisible by 5 if the last digit is 0 or 5. |
| 6 | Yes (26478 ÷ 6 = 4413) | 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 6) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | Yes (26478 ÷ 9 = 2942) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 8) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 1) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 6) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 26478 a prime number?
No. 26478 = 2 × × 1471, so it is divisible by 2.
What are the factors of 26478?
1, 2, 3, 6, 9, 18, 1471, 2942, 4413, 8826, 13239, 26478.
What is 26478 in binary?
110011101101110 (hexadecimal 676E, octal 63556).
What is the square root of 26478?
About 162.7206, exactly 3√2942.
Is 26478 divisible by 3?
Yes. Its digits add up to 27, a multiple of 3.
What is special about the number 26478?
It is a composite number with 12 divisors.