The number 48949
48949 is a composite number with 4 divisors. Its prime factorisation is 31 × 1579. Divisors (4): 1, 31, 1579, 48949.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 48949: a semiprime: 31 × 1579, the product of two primes.
- 2
48949 is composite. Its prime factorisation is
- 3
The divisors add up to 50560; without 48949 itself that is 1611, so 48949 is deficient (1611 is less than 48949). Euler's totient φ(48949) = 47340 numbers up to 48949 share no factor with it.
- 4
The digits of 48949 add up to 34, and repeating that until one digit is left gives the digital root 7. The Collatz sequence (halve if even, else 3n+1) takes 65 steps to reach 1.
LaTeX source of the formulas on this page
\[ 48949 = 31 \times 1579 \]
48949 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 50560 |
| Euler totient φ(n) | 47340 |
| Square | 2396004601 |
| Cube | 117282029214349 |
| Square root | 221.244209 |
| Digit sum / digital root | 34 / 7 |
| Collatz steps to 1 | 65 |
| Scientific notation | 4.8949 × |
48949 in other forms
| Form | Value |
|---|---|
| In words | forty-eight thousand nine hundred and forty-nine |
| Binary (base 2) | 1011111100110101 |
| Octal (base 8) | 137465 |
| Hexadecimal (base 16) | BF35 |
| Base 3 | 2111010221 |
| As time | 48949 seconds = 13 h 35 min 49 s |
Is 48949 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 1) | 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 | No (remainder 5) | 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 5) | 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 10) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 1) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 48949 a prime number?
No. 48949 = 31 × 1579, so it is divisible by 31.
What are the factors of 48949?
1, 31, 1579, 48949.
What is 48949 in binary?
1011111100110101 (hexadecimal BF35, octal 137465).
What is the square root of 48949?
About 221.2442.
Is 48949 divisible by 3?
No. Its digits add up to 34, which is not a multiple of 3.
What is special about the number 48949?
48949 is a semiprime: 31 × 1579, the product of two primes.