The number 60438
60438 is a composite number with 16 divisors. Its prime factorisation is 2 × 3 × 7 × 1439. Divisors (16): 1, 2, 3, 6, 7, 14, 21, 42, 1439, 2878, 4317, 8634, 10073, 20146, 30219, 60438.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 60438: a Harshad number: divisible by its digit sum 21.
- 2
60438 is composite. Its prime factorisation is
- 3
The divisors add up to 138240; without 60438 itself that is 77802, so 60438 is abundant (77802 is more than 60438). Euler's totient φ(60438) = 17256 numbers up to 60438 share no factor with it.
- 4
The digits of 60438 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 135 steps to reach 1.
LaTeX source of the formulas on this page
\[ 60438 = 2 \times 3 \times 7 \times 1439 \]
60438 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 16 |
| Sum of divisors | 138240 |
| Euler totient φ(n) | 17256 |
| Square | 3652751844 |
| Cube | 220765015947672 |
| Square root | 245.841412 |
| Digit sum / digital root | 21 / 3 |
| Collatz steps to 1 | 135 |
| Scientific notation | 6.0438 × |
60438 in other forms
| Form | Value |
|---|---|
| In words | sixty thousand four hundred and thirty-eight |
| Binary (base 2) | 1110110000010110 |
| Octal (base 8) | 166026 |
| Hexadecimal (base 16) | EC16 |
| Base 3 | 10001220110 |
| As time | 60438 seconds = 16 h 47 min 18 s |
Is 60438 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (60438 ÷ 2 = 30219) | A number is divisible by 2 if the last digit is even (0, 2, 4, 6, 8). |
| 3 | Yes (60438 ÷ 3 = 20146) | 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 | No (remainder 3) | A number is divisible by 5 if the last digit is 0 or 5. |
| 6 | Yes (60438 ÷ 6 = 10073) | A number is divisible by 6 if it is divisible by both 2 and 3. |
| 7 | Yes (60438 ÷ 7 = 8634) | 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 6) | 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 8) | 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 6) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 60438 a prime number?
No. 60438 = 2 × 3 × 7 × 1439, so it is divisible by 2.
What are the factors of 60438?
1, 2, 3, 6, 7, 14, 21, 42, 1439, 2878, 4317, 8634, 10073, 20146, 30219, 60438.
What is 60438 in binary?
1110110000010110 (hexadecimal EC16, octal 166026).
What is the square root of 60438?
About 245.8414.
Is 60438 divisible by 3?
Yes. Its digits add up to 21, a multiple of 3.
What is special about the number 60438?
60438 is a Harshad number: divisible by its digit sum 21.