The number 26942
26942 is a composite number with 8 divisors. Its prime factorisation is 2 × 19 × 709. Divisors (8): 1, 2, 19, 38, 709, 1418, 13471, 26942.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
26942 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
26942 is composite. Its prime factorisation is
- 3
The divisors add up to 42600; without 26942 itself that is 15658, so 26942 is deficient (15658 is less than 26942). Euler's totient φ(26942) = 12744 numbers up to 26942 share no factor with it.
- 4
The digits of 26942 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 90 steps to reach 1.
LaTeX source of the formulas on this page
\[ 26942 = 2 \times 19 \times 709 \]
26942 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 8 |
| Sum of divisors | 42600 |
| Euler totient φ(n) | 12744 |
| Square | 725871364 |
| Cube | 19556426288888 |
| Square root | 164.140184 |
| Digit sum / digital root | 23 / 5 |
| Collatz steps to 1 | 90 |
| Scientific notation | 2.6942 × |
26942 in other forms
| Form | Value |
|---|---|
| In words | twenty-six thousand nine hundred and forty-two |
| Binary (base 2) | 110100100111110 |
| Octal (base 8) | 64476 |
| Hexadecimal (base 16) | 693E |
| Base 3 | 1100221212 |
| As time | 26942 seconds = 7 h 29 min 2 s |
Is 26942 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (26942 ÷ 2 = 13471) | 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 6) | 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 | 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 3) | 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 26942 a prime number?
No. 26942 = 2 × 19 × 709, so it is divisible by 2.
What are the factors of 26942?
1, 2, 19, 38, 709, 1418, 13471, 26942.
What is 26942 in binary?
110100100111110 (hexadecimal 693E, octal 64476).
What is the square root of 26942?
About 164.1402.
Is 26942 divisible by 3?
No. Its digits add up to 23, which is not a multiple of 3.
What is special about the number 26942?
It is a composite number with 8 divisors.