The number 49621
49621 is a composite number with 8 divisors. Its prime factorisation is 11 × 13 × 347. Divisors (8): 1, 11, 13, 143, 347, 3817, 4511, 49621.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
49621 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
49621 is composite. Its prime factorisation is
- 3
The divisors add up to 58464; without 49621 itself that is 8843, so 49621 is deficient (8843 is less than 49621). Euler's totient φ(49621) = 41520 numbers up to 49621 share no factor with it.
- 4
The digits of 49621 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 158 steps to reach 1.
LaTeX source of the formulas on this page
\[ 49621 = 11 \times 13 \times 347 \]
49621 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 8 |
| Sum of divisors | 58464 |
| Euler totient φ(n) | 41520 |
| Square | 2462243641 |
| Cube | 122178991710061 |
| Square root | 222.757716 |
| Digit sum / digital root | 22 / 4 |
| Collatz steps to 1 | 158 |
| Scientific notation | 4.9621 × |
49621 in other forms
| Form | Value |
|---|---|
| In words | forty-nine thousand six hundred and twenty-one |
| Binary (base 2) | 1100000111010101 |
| Octal (base 8) | 140725 |
| Hexadecimal (base 16) | C1D5 |
| Base 3 | 2112001211 |
| As time | 49621 seconds = 13 h 47 min 1 s |
Is 49621 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 1) | 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 4) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 1) | A number is divisible by 10 if the last digit is 0. |
| 11 | Yes (49621 ÷ 11 = 4511) | 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 49621 a prime number?
No. 49621 = 11 × 13 × 347, so it is divisible by 11.
What are the factors of 49621?
1, 11, 13, 143, 347, 3817, 4511, 49621.
What is 49621 in binary?
1100000111010101 (hexadecimal C1D5, octal 140725).
What is the square root of 49621?
About 222.7577.
Is 49621 divisible by 3?
No. Its digits add up to 22, which is not a multiple of 3.
What is special about the number 49621?
It is a composite number with 8 divisors.