The number 87014
87014 is a composite number with 8 divisors. Its prime factorisation is 2 × 139 × 313. Divisors (8): 1, 2, 139, 278, 313, 626, 43507, 87014.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 87014: a happy number: repeatedly adding the squares of its digits reaches 1.
- 2
87014 is composite. Its prime factorisation is
- 3
The divisors add up to 131880; without 87014 itself that is 44866, so 87014 is deficient (44866 is less than 87014). Euler's totient φ(87014) = 43056 numbers up to 87014 share no factor with it.
- 4
The digits of 87014 add up to 20, and repeating that until one digit is left gives the digital root 2. The Collatz sequence (halve if even, else 3n+1) takes 120 steps to reach 1.
LaTeX source of the formulas on this page
\[ 87014 = 2 \times 139 \times 313 \]
87014 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 8 |
| Sum of divisors | 131880 |
| Euler totient φ(n) | 43056 |
| Square | 7571436196 |
| Cube | 658820949158744 |
| Square root | 294.981355 |
| Digit sum / digital root | 20 / 2 |
| Collatz steps to 1 | 120 |
| Scientific notation | 8.7014 × |
87014 in other forms
| Form | Value |
|---|---|
| In words | eighty-seven thousand and fourteen |
| Binary (base 2) | 10101001111100110 |
| Octal (base 8) | 251746 |
| Hexadecimal (base 16) | 153E6 |
| Base 3 | 11102100202 |
| As time | 87014 seconds = 24 h 10 min 14 s |
Is 87014 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (87014 ÷ 2 = 43507) | 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 | No (remainder 4) | 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 2) | 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 4) | 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 87014 a prime number?
No. 87014 = 2 × 139 × 313, so it is divisible by 2.
What are the factors of 87014?
1, 2, 139, 278, 313, 626, 43507, 87014.
What is 87014 in binary?
10101001111100110 (hexadecimal 153E6, octal 251746).
What is the square root of 87014?
About 294.9814.
Is 87014 divisible by 3?
No. Its digits add up to 20, which is not a multiple of 3.
What is special about the number 87014?
87014 is a happy number: repeatedly adding the squares of its digits reaches 1.