The number 31094
31094 is a composite number with 8 divisors. Its prime factorisation is 2 × 7 × 2221. Divisors (8): 1, 2, 7, 14, 2221, 4442, 15547, 31094.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
31094 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
31094 is composite. Its prime factorisation is
- 3
The divisors add up to 53328; without 31094 itself that is 22234, so 31094 is deficient (22234 is less than 31094). Euler's totient φ(31094) = 13320 numbers up to 31094 share no factor with it.
- 4
The digits of 31094 add up to 17, and repeating that until one digit is left gives the digital root 8. The Collatz sequence (halve if even, else 3n+1) takes 59 steps to reach 1.
LaTeX source of the formulas on this page
\[ 31094 = 2 \times 7 \times 2221 \]
31094 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 8 |
| Sum of divisors | 53328 |
| Euler totient φ(n) | 13320 |
| Square | 966836836 |
| Cube | 30062824578584 |
| Square root | 176.334909 |
| Digit sum / digital root | 17 / 8 |
| Collatz steps to 1 | 59 |
| Scientific notation | 3.1094 × |
31094 in other forms
| Form | Value |
|---|---|
| In words | thirty-one thousand and ninety-four |
| Binary (base 2) | 111100101110110 |
| Octal (base 8) | 74566 |
| Hexadecimal (base 16) | 7976 |
| Base 3 | 1120122122 |
| As time | 31094 seconds = 8 h 38 min 14 s |
Is 31094 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (31094 ÷ 2 = 15547) | 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 4) | 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 | Yes (31094 ÷ 7 = 4442) | 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 8) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 4) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 8) | 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 31094 a prime number?
No. 31094 = 2 × 7 × 2221, so it is divisible by 2.
What are the factors of 31094?
1, 2, 7, 14, 2221, 4442, 15547, 31094.
What is 31094 in binary?
111100101110110 (hexadecimal 7976, octal 74566).
What is the square root of 31094?
About 176.3349.
Is 31094 divisible by 3?
No. Its digits add up to 17, which is not a multiple of 3.
What is special about the number 31094?
It is a composite number with 8 divisors.