The number 27601
27601 is a composite number with 4 divisors. Its prime factorisation is 7 × 3943. Divisors (4): 1, 7, 3943, 27601.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 27601: a semiprime: 7 × 3943, the product of two primes.
- 2
27601 is composite. Its prime factorisation is
- 3
The divisors add up to 31552; without 27601 itself that is 3951, so 27601 is deficient (3951 is less than 27601). Euler's totient φ(27601) = 23652 numbers up to 27601 share no factor with it.
- 4
The digits of 27601 add up to 16, and repeating that until one digit is left gives the digital root 7. The Collatz sequence (halve if even, else 3n+1) takes 152 steps to reach 1.
LaTeX source of the formulas on this page
\[ 27601 = 7 \times 3943 \]
27601 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 31552 |
| Euler totient φ(n) | 23652 |
| Square | 761815201 |
| Cube | 21026861362801 |
| Square root | 166.135487 |
| Digit sum / digital root | 16 / 7 |
| Collatz steps to 1 | 152 |
| Scientific notation | 2.7601 × |
27601 in other forms
| Form | Value |
|---|---|
| In words | twenty-seven thousand six hundred and one |
| Binary (base 2) | 110101111010001 |
| Octal (base 8) | 65721 |
| Hexadecimal (base 16) | 6BD1 |
| Base 3 | 1101212021 |
| As time | 27601 seconds = 7 h 40 min 1 s |
Is 27601 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 1) | 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 1) | A number is divisible by 5 if the last digit is 0 or 5. |
| 6 | No (remainder 1) | A number is divisible by 6 if it is divisible by both 2 and 3. |
| 7 | Yes (27601 ÷ 7 = 3943) | 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 1) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 7) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 1) | 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 1) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 27601 a prime number?
No. 27601 = 7 × 3943, so it is divisible by 7.
What are the factors of 27601?
1, 7, 3943, 27601.
What is 27601 in binary?
110101111010001 (hexadecimal 6BD1, octal 65721).
What is the square root of 27601?
About 166.1355.
Is 27601 divisible by 3?
No. Its digits add up to 16, which is not a multiple of 3.
What is special about the number 27601?
27601 is a semiprime: 7 × 3943, the product of two primes.