The number 31468
31468 is a composite number with 6 divisors. Its prime factorisation is × 7867. Divisors (6): 1, 2, 4, 7867, 15734, 31468.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
31468 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
31468 is composite. Its prime factorisation is
- 3
The divisors add up to 55076; without 31468 itself that is 23608, so 31468 is deficient (23608 is less than 31468). Euler's totient φ(31468) = 15732 numbers up to 31468 share no factor with it.
- 4
The digits of 31468 add up to 22, and repeating that until one digit is left gives the digital root 4. The Collatz sequence (halve if even, else 3n+1) takes 54 steps to reach 1.
LaTeX source of the formulas on this page
\[ 31468 = 2^{2} \times 7867 \]31468 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 6 |
| Sum of divisors | 55076 |
| Euler totient φ(n) | 15732 |
| Square | 990235024 |
| Cube | 31160715735232 |
| Square root | 177.392221 (= 2√7867) |
| Digit sum / digital root | 22 / 4 |
| Collatz steps to 1 | 54 |
| Scientific notation | 3.1468 × |
31468 in other forms
| Form | Value |
|---|---|
| In words | thirty-one thousand four hundred and sixty-eight |
| Binary (base 2) | 111101011101100 |
| Octal (base 8) | 75354 |
| Hexadecimal (base 16) | 7AEC |
| Base 3 | 1121011111 |
| As time | 31468 seconds = 8 h 44 min 28 s |
Is 31468 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (31468 ÷ 2 = 15734) | 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 | Yes (31468 ÷ 4 = 7867) | 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 4) | A number is divisible by 6 if it is divisible by both 2 and 3. |
| 7 | No (remainder 3) | 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 4) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 4) | 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 8) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 4) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 31468 a prime number?
No. 31468 = × 7867, so it is divisible by 2.
What are the factors of 31468?
1, 2, 4, 7867, 15734, 31468.
What is 31468 in binary?
111101011101100 (hexadecimal 7AEC, octal 75354).
What is the square root of 31468?
About 177.3922, exactly 2√7867.
Is 31468 divisible by 3?
No. Its digits add up to 22, which is not a multiple of 3.
What is special about the number 31468?
It is a composite number with 6 divisors.