The number 53431
53431 is a composite number with 8 divisors. Its prime factorisation is 7 × 17 × 449. Divisors (8): 1, 7, 17, 119, 449, 3143, 7633, 53431.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
53431 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
53431 is composite. Its prime factorisation is
- 3
The divisors add up to 64800; without 53431 itself that is 11369, so 53431 is deficient (11369 is less than 53431). Euler's totient φ(53431) = 43008 numbers up to 53431 share no factor with it.
- 4
The digits of 53431 add up to 16, and repeating that until one digit is left gives the digital root 7. The Collatz sequence (halve if even, else 3n+1) takes 122 steps to reach 1.
LaTeX source of the formulas on this page
\[ 53431 = 7 \times 17 \times 449 \]
53431 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 8 |
| Sum of divisors | 64800 |
| Euler totient φ(n) | 43008 |
| Square | 2854871761 |
| Cube | 152538653061991 |
| Square root | 231.151465 |
| Digit sum / digital root | 16 / 7 |
| Collatz steps to 1 | 122 |
| Scientific notation | 5.3431 × |
53431 in other forms
| Form | Value |
|---|---|
| In words | fifty-three thousand four hundred and thirty-one |
| Binary (base 2) | 1101000010110111 |
| Octal (base 8) | 150267 |
| Hexadecimal (base 16) | D0B7 |
| Base 3 | 2201021221 |
| As time | 53431 seconds = 14 h 50 min 31 s |
Is 53431 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 | Yes (53431 ÷ 7 = 7633) | 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 7) | 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 1) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 4) | 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 53431 a prime number?
No. 53431 = 7 × 17 × 449, so it is divisible by 7.
What are the factors of 53431?
1, 7, 17, 119, 449, 3143, 7633, 53431.
What is 53431 in binary?
1101000010110111 (hexadecimal D0B7, octal 150267).
What is the square root of 53431?
About 231.1515.
Is 53431 divisible by 3?
No. Its digits add up to 16, which is not a multiple of 3.
What is special about the number 53431?
It is a composite number with 8 divisors.