The number 16210
16210 is a composite number with 8 divisors. Its prime factorisation is 2 × 5 × 1621. Divisors (8): 1, 2, 5, 10, 1621, 3242, 8105, 16210.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 16210: a Harshad number: divisible by its digit sum 10.
- 2
16210 is composite. Its prime factorisation is
- 3
The divisors add up to 29196; without 16210 itself that is 12986, so 16210 is deficient (12986 is less than 16210). Euler's totient φ(16210) = 6480 numbers up to 16210 share no factor with it.
- 4
The digits of 16210 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 71 steps to reach 1.
LaTeX source of the formulas on this page
\[ 16210 = 2 \times 5 \times 1621 \]
16210 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 8 |
| Sum of divisors | 29196 |
| Euler totient φ(n) | 6480 |
| Square | 262764100 |
| Cube | 4259406061000 |
| Square root | 127.318498 |
| Digit sum / digital root | 10 / 1 |
| Collatz steps to 1 | 71 |
| Scientific notation | 1.621 × |
16210 in other forms
| Form | Value |
|---|---|
| In words | sixteen thousand two hundred and ten |
| Binary (base 2) | 11111101010010 |
| Octal (base 8) | 37522 |
| Hexadecimal (base 16) | 3F52 |
| Base 3 | 211020101 |
| As time | 16210 seconds = 4 h 30 min 10 s |
Is 16210 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (16210 ÷ 2 = 8105) | 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 2) | A number is divisible by 4 if the last two digits make a multiple of 4. |
| 5 | Yes (16210 ÷ 5 = 3242) | A number is divisible by 5 if the last digit is 0 or 5. |
| 6 | No (remainder 4) | A number is divisible by 6 if it is divisible by both 2 and 3. |
| 7 | No (remainder 5) | 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 2) | 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 | Yes (16210 ÷ 10 = 1621) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 7) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 10) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 16210 a prime number?
No. 16210 = 2 × 5 × 1621, so it is divisible by 2.
What are the factors of 16210?
1, 2, 5, 10, 1621, 3242, 8105, 16210.
What is 16210 in binary?
11111101010010 (hexadecimal 3F52, octal 37522).
What is the square root of 16210?
About 127.3185.
Is 16210 divisible by 3?
No. Its digits add up to 10, which is not a multiple of 3.
What is special about the number 16210?
16210 is a Harshad number: divisible by its digit sum 10.