The number 26949
26949 is a composite number with 8 divisors. Its prime factorisation is 3 × 13 × 691. Divisors (8): 1, 3, 13, 39, 691, 2073, 8983, 26949.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
26949 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
26949 is composite. Its prime factorisation is
- 3
The divisors add up to 38752; without 26949 itself that is 11803, so 26949 is deficient (11803 is less than 26949). Euler's totient φ(26949) = 16560 numbers up to 26949 share no factor with it.
- 4
The digits of 26949 add up to 30, and repeating that until one digit is left gives the digital root 3. The Collatz sequence (halve if even, else 3n+1) takes 183 steps to reach 1.
LaTeX source of the formulas on this page
\[ 26949 = 3 \times 13 \times 691 \]
26949 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 8 |
| Sum of divisors | 38752 |
| Euler totient φ(n) | 16560 |
| Square | 726248601 |
| Cube | 19571673548349 |
| Square root | 164.161506 |
| Digit sum / digital root | 30 / 3 |
| Collatz steps to 1 | 183 |
| Scientific notation | 2.6949 × |
26949 in other forms
| Form | Value |
|---|---|
| In words | twenty-six thousand nine hundred and forty-nine |
| Binary (base 2) | 110100101000101 |
| Octal (base 8) | 64505 |
| Hexadecimal (base 16) | 6945 |
| Base 3 | 1100222010 |
| As time | 26949 seconds = 7 h 29 min 9 s |
Is 26949 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 | Yes (26949 ÷ 3 = 8983) | 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 3) | 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 5) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 3) | 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 10) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 9) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 26949 a prime number?
No. 26949 = 3 × 13 × 691, so it is divisible by 3.
What are the factors of 26949?
1, 3, 13, 39, 691, 2073, 8983, 26949.
What is 26949 in binary?
110100101000101 (hexadecimal 6945, octal 64505).
What is the square root of 26949?
About 164.1615.
Is 26949 divisible by 3?
Yes. Its digits add up to 30, a multiple of 3.
What is special about the number 26949?
It is a composite number with 8 divisors.