The number 62491
62491 is a composite number with 16 divisors. Its prime factorisation is 11 × 13 × 19 × 23. Divisors (16): 1, 11, 13, 19, 23, 143, 209, 247, 253, 299, 437, 2717, 3289, 4807, 5681, 62491.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
62491 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
62491 is composite. Its prime factorisation is
- 3
The divisors add up to 80640; without 62491 itself that is 18149, so 62491 is deficient (18149 is less than 62491). Euler's totient φ(62491) = 47520 numbers up to 62491 share no factor with it.
- 4
The digits of 62491 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 179 steps to reach 1.
LaTeX source of the formulas on this page
\[ 62491 = 11 \times 13 \times 19 \times 23 \]
62491 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 16 |
| Sum of divisors | 80640 |
| Euler totient φ(n) | 47520 |
| Square | 3905125081 |
| Cube | 244035171436771 |
| Square root | 249.981999 |
| Digit sum / digital root | 22 / 4 |
| Collatz steps to 1 | 179 |
| Scientific notation | 6.2491 × |
62491 in other forms
| Form | Value |
|---|---|
| In words | sixty-two thousand four hundred and ninety-one |
| Binary (base 2) | 1111010000011011 |
| Octal (base 8) | 172033 |
| Hexadecimal (base 16) | F41B |
| Base 3 | 10011201111 |
| As time | 62491 seconds = 17 h 21 min 31 s |
Is 62491 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 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 2) | 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 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 (62491 ÷ 11 = 5681) | 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 62491 a prime number?
No. 62491 = 11 × 13 × 19 × 23, so it is divisible by 11.
What are the factors of 62491?
1, 11, 13, 19, 23, 143, 209, 247, 253, 299, 437, 2717, 3289, 4807, 5681, 62491.
What is 62491 in binary?
1111010000011011 (hexadecimal F41B, octal 172033).
What is the square root of 62491?
About 249.9820.
Is 62491 divisible by 3?
No. Its digits add up to 22, which is not a multiple of 3.
What is special about the number 62491?
It is a composite number with 16 divisors.