The number 1195
1195 is a composite number with 4 divisors. Its prime factorisation is 5 × 239. Divisors (4): 1, 5, 239, 1195.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 1195: a semiprime: 5 × 239, the product of two primes.
- 2
1195 is composite. Its prime factorisation is
- 3
The divisors add up to 1440; without 1195 itself that is 245, so 1195 is deficient (245 is less than 1195). Euler's totient φ(1195) = 952 numbers up to 1195 share no factor with it.
- 4
The digits of 1195 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 119 steps to reach 1.
LaTeX source of the formulas on this page
\[ 1195 = 5 \times 239 \]
1195 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 1440 |
| Euler totient φ(n) | 952 |
| Square | 1428025 |
| Cube | 1706489875 |
| Square root | 34.568772 |
| Digit sum / digital root | 16 / 7 |
| Collatz steps to 1 | 119 |
| Scientific notation | 1.195 × |
1195 in other forms
| Form | Value |
|---|---|
| In words | one thousand one hundred and ninety-five |
| Roman numerals | MCXCV |
| Binary (base 2) | 10010101011 |
| Octal (base 8) | 2253 |
| Hexadecimal (base 16) | 4AB |
| Base 3 | 1122021 |
| As time | 1195 seconds = 19 min 55 s |
Is 1195 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 3) | A number is divisible by 4 if the last two digits make a multiple of 4. |
| 5 | Yes (1195 ÷ 5 = 239) | 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 | 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 3) | 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 5) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 7) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 7) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 1195 a prime number?
No. 1195 = 5 × 239, so it is divisible by 5.
What are the factors of 1195?
1, 5, 239, 1195.
What is 1195 in binary?
10010101011 (hexadecimal 4AB, octal 2253).
What is the square root of 1195?
About 34.5688.
What is 1195 in Roman numerals?
MCXCV.
Is 1195 divisible by 3?
No. Its digits add up to 16, which is not a multiple of 3.
What is special about the number 1195?
1195 is a semiprime: 5 × 239, the product of two primes.