The number 31058
31058 is a composite number with 8 divisors. Its prime factorisation is 2 × 53 × 293. Divisors (8): 1, 2, 53, 106, 293, 586, 15529, 31058.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
31058 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
31058 is composite. Its prime factorisation is
- 3
The divisors add up to 47628; without 31058 itself that is 16570, so 31058 is deficient (16570 is less than 31058). Euler's totient φ(31058) = 15184 numbers up to 31058 share no factor with it.
- 4
The digits of 31058 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 147 steps to reach 1.
LaTeX source of the formulas on this page
\[ 31058 = 2 \times 53 \times 293 \]
31058 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 8 |
| Sum of divisors | 47628 |
| Euler totient φ(n) | 15184 |
| Square | 964599364 |
| Cube | 29958527047112 |
| Square root | 176.232801 |
| Digit sum / digital root | 17 / 8 |
| Collatz steps to 1 | 147 |
| Scientific notation | 3.1058 × |
31058 in other forms
| Form | Value |
|---|---|
| In words | thirty-one thousand and fifty-eight |
| Binary (base 2) | 111100101010010 |
| Octal (base 8) | 74522 |
| Hexadecimal (base 16) | 7952 |
| Base 3 | 1120121022 |
| As time | 31058 seconds = 8 h 37 min 38 s |
Is 31058 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (31058 ÷ 2 = 15529) | 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 3) | 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 2) | 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 8) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 5) | 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 31058 a prime number?
No. 31058 = 2 × 53 × 293, so it is divisible by 2.
What are the factors of 31058?
1, 2, 53, 106, 293, 586, 15529, 31058.
What is 31058 in binary?
111100101010010 (hexadecimal 7952, octal 74522).
What is the square root of 31058?
About 176.2328.
Is 31058 divisible by 3?
No. Its digits add up to 17, which is not a multiple of 3.
What is special about the number 31058?
It is a composite number with 8 divisors.