The number 48139
48139 is a composite number with 12 divisors. Its prime factorisation is 7 × 13 × . Divisors (12): 1, 7, 13, 23, 91, 161, 299, 529, 2093, 3703, 6877, 48139.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
48139 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
48139 is composite. Its prime factorisation is
- 3
The divisors add up to 61936; without 48139 itself that is 13797, so 48139 is deficient (13797 is less than 48139). Euler's totient φ(48139) = 36432 numbers up to 48139 share no factor with it.
- 4
The digits of 48139 add up to 25, and repeating that until one digit is left gives the digital root 7. The Collatz sequence (halve if even, else 3n+1) takes 52 steps to reach 1.
LaTeX source of the formulas on this page
\[ 48139 = 7 \times 13 \times 23^{2} \]48139 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 12 |
| Sum of divisors | 61936 |
| Euler totient φ(n) | 36432 |
| Square | 2317363321 |
| Cube | 111555552909619 |
| Square root | 219.406016 (= 23√91) |
| Digit sum / digital root | 25 / 7 |
| Collatz steps to 1 | 52 |
| Scientific notation | 4.8139 × |
48139 in other forms
| Form | Value |
|---|---|
| In words | forty-eight thousand one hundred and thirty-nine |
| Binary (base 2) | 1011110000001011 |
| Octal (base 8) | 136013 |
| Hexadecimal (base 16) | BC0B |
| Base 3 | 2110000221 |
| As time | 48139 seconds = 13 h 22 min 19 s |
Is 48139 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 | No (remainder 4) | 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 | Yes (48139 ÷ 7 = 6877) | 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 9) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 3) | 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 48139 a prime number?
No. 48139 = 7 × 13 × , so it is divisible by 7.
What are the factors of 48139?
1, 7, 13, 23, 91, 161, 299, 529, 2093, 3703, 6877, 48139.
What is 48139 in binary?
1011110000001011 (hexadecimal BC0B, octal 136013).
What is the square root of 48139?
About 219.4060, exactly 23√91.
Is 48139 divisible by 3?
No. Its digits add up to 25, which is not a multiple of 3.
What is special about the number 48139?
It is a composite number with 12 divisors.