The number 24131
24131 is a composite number with 4 divisors. Its prime factorisation is 59 × 409. Divisors (4): 1, 59, 409, 24131.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 24131: a happy number: repeatedly adding the squares of its digits reaches 1; a semiprime: 59 × 409, the product of two primes.
- 2
24131 is composite. Its prime factorisation is
- 3
The divisors add up to 24600; without 24131 itself that is 469, so 24131 is deficient (469 is less than 24131). Euler's totient φ(24131) = 23664 numbers up to 24131 share no factor with it.
- 4
The digits of 24131 add up to 11, and repeating that until one digit is left gives the digital root 2. The Collatz sequence (halve if even, else 3n+1) takes 51 steps to reach 1.
LaTeX source of the formulas on this page
\[ 24131 = 59 \times 409 \]
24131 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 24600 |
| Euler totient φ(n) | 23664 |
| Square | 582305161 |
| Cube | 14051605840091 |
| Square root | 155.341559 |
| Digit sum / digital root | 11 / 2 |
| Collatz steps to 1 | 51 |
| Scientific notation | 2.4131 × |
24131 in other forms
| Form | Value |
|---|---|
| In words | twenty-four thousand one hundred and thirty-one |
| Binary (base 2) | 101111001000011 |
| Octal (base 8) | 57103 |
| Hexadecimal (base 16) | 5E43 |
| Base 3 | 1020002202 |
| As time | 24131 seconds = 6 h 42 min 11 s |
Is 24131 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 2) | 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 5) | 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 2) | 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 | No (remainder 8) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 11) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 24131 a prime number?
No. 24131 = 59 × 409, so it is divisible by 59.
What are the factors of 24131?
1, 59, 409, 24131.
What is 24131 in binary?
101111001000011 (hexadecimal 5E43, octal 57103).
What is the square root of 24131?
About 155.3416.
Is 24131 divisible by 3?
No. Its digits add up to 11, which is not a multiple of 3.
What is special about the number 24131?
24131 is a happy number: repeatedly adding the squares of its digits reaches 1; a semiprime: 59 × 409, the product of two primes.