The number 16437
16437 is a composite number with 4 divisors. Its prime factorisation is 3 × 5479. Divisors (4): 1, 3, 5479, 16437.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 16437: a semiprime: 3 × 5479, the product of two primes.
- 2
16437 is composite. Its prime factorisation is
- 3
The divisors add up to 21920; without 16437 itself that is 5483, so 16437 is deficient (5483 is less than 16437). Euler's totient φ(16437) = 10956 numbers up to 16437 share no factor with it.
- 4
The digits of 16437 add up to 21, and repeating that until one digit is left gives the digital root 3. The Collatz sequence (halve if even, else 3n+1) takes 40 steps to reach 1.
LaTeX source of the formulas on this page
\[ 16437 = 3 \times 5479 \]
16437 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 21920 |
| Euler totient φ(n) | 10956 |
| Square | 270174969 |
| Cube | 4440865965453 |
| Square root | 128.206864 |
| Digit sum / digital root | 21 / 3 |
| Collatz steps to 1 | 40 |
| Scientific notation | 1.6437 × |
16437 in other forms
| Form | Value |
|---|---|
| In words | sixteen thousand four hundred and thirty-seven |
| Binary (base 2) | 100000000110101 |
| Octal (base 8) | 40065 |
| Hexadecimal (base 16) | 4035 |
| Base 3 | 211112210 |
| As time | 16437 seconds = 4 h 33 min 57 s |
Is 16437 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 | Yes (16437 ÷ 3 = 5479) | 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 2) | A number is divisible by 5 if the last digit is 0 or 5. |
| 6 | No (remainder 3) | A number is divisible by 6 if it is divisible by both 2 and 3. |
| 7 | No (remainder 1) | 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 3) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 7) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 3) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 9) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 16437 a prime number?
No. 16437 = 3 × 5479, so it is divisible by 3.
What are the factors of 16437?
1, 3, 5479, 16437.
What is 16437 in binary?
100000000110101 (hexadecimal 4035, octal 40065).
What is the square root of 16437?
About 128.2069.
Is 16437 divisible by 3?
Yes. Its digits add up to 21, a multiple of 3.
What is special about the number 16437?
16437 is a semiprime: 3 × 5479, the product of two primes.