The number 26402
26402 is a composite number with 8 divisors. Its prime factorisation is 2 × 43 × 307. Divisors (8): 1, 2, 43, 86, 307, 614, 13201, 26402.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
26402 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
26402 is composite. Its prime factorisation is
- 3
The divisors add up to 40656; without 26402 itself that is 14254, so 26402 is deficient (14254 is less than 26402). Euler's totient φ(26402) = 12852 numbers up to 26402 share no factor with it.
- 4
The digits of 26402 add up to 14, 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
\[ 26402 = 2 \times 43 \times 307 \]
26402 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 8 |
| Sum of divisors | 40656 |
| Euler totient φ(n) | 12852 |
| Square | 697065604 |
| Cube | 18403926076808 |
| Square root | 162.486923 |
| Digit sum / digital root | 14 / 5 |
| Collatz steps to 1 | 77 |
| Scientific notation | 2.6402 × |
26402 in other forms
| Form | Value |
|---|---|
| In words | twenty-six thousand four hundred and two |
| Binary (base 2) | 110011100100010 |
| Octal (base 8) | 63442 |
| Hexadecimal (base 16) | 6722 |
| Base 3 | 1100012212 |
| As time | 26402 seconds = 7 h 20 min 2 s |
Is 26402 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (26402 ÷ 2 = 13201) | 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 2) | A number is divisible by 4 if the last two digits make a multiple of 4. |
| 5 | No (remainder 2) | A number is divisible by 5 if the last digit is 0 or 5. |
| 6 | No (remainder 2) | 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 5) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 2) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 2) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 2) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 26402 a prime number?
No. 26402 = 2 × 43 × 307, so it is divisible by 2.
What are the factors of 26402?
1, 2, 43, 86, 307, 614, 13201, 26402.
What is 26402 in binary?
110011100100010 (hexadecimal 6722, octal 63442).
What is the square root of 26402?
About 162.4869.
Is 26402 divisible by 3?
No. Its digits add up to 14, which is not a multiple of 3.
What is special about the number 26402?
It is a composite number with 8 divisors.