The number 16201
16201 is a composite number with 4 divisors. Its prime factorisation is 17 × 953. Divisors (4): 1, 17, 953, 16201.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 16201: a semiprime: 17 × 953, the product of two primes.
- 2
16201 is composite. Its prime factorisation is
- 3
The divisors add up to 17172; without 16201 itself that is 971, so 16201 is deficient (971 is less than 16201). Euler's totient φ(16201) = 15232 numbers up to 16201 share no factor with it.
- 4
The digits of 16201 add up to 10, and repeating that until one digit is left gives the digital root 1. The Collatz sequence (halve if even, else 3n+1) takes 66 steps to reach 1.
LaTeX source of the formulas on this page
\[ 16201 = 17 \times 953 \]
16201 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 17172 |
| Euler totient φ(n) | 15232 |
| Square | 262472401 |
| Cube | 4252315368601 |
| Square root | 127.283149 |
| Digit sum / digital root | 10 / 1 |
| Collatz steps to 1 | 66 |
| Scientific notation | 1.6201 × |
16201 in other forms
| Form | Value |
|---|---|
| In words | sixteen thousand two hundred and one |
| Binary (base 2) | 11111101001001 |
| Octal (base 8) | 37511 |
| Hexadecimal (base 16) | 3F49 |
| Base 3 | 211020001 |
| As time | 16201 seconds = 4 h 30 min 1 s |
Is 16201 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 3) | 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 1) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 1) | 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 9) | 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 16201 a prime number?
No. 16201 = 17 × 953, so it is divisible by 17.
What are the factors of 16201?
1, 17, 953, 16201.
What is 16201 in binary?
11111101001001 (hexadecimal 3F49, octal 37511).
What is the square root of 16201?
About 127.2831.
Is 16201 divisible by 3?
No. Its digits add up to 10, which is not a multiple of 3.
What is special about the number 16201?
16201 is a semiprime: 17 × 953, the product of two primes.