The number 59987
59987 is a composite number with 4 divisors. Its prime factorisation is 223 × 269. Divisors (4): 1, 223, 269, 59987.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 59987: a semiprime: 223 × 269, the product of two primes.
- 2
59987 is composite. Its prime factorisation is
- 3
The divisors add up to 60480; without 59987 itself that is 493, so 59987 is deficient (493 is less than 59987). Euler's totient φ(59987) = 59496 numbers up to 59987 share no factor with it.
- 4
The digits of 59987 add up to 38, and repeating that until one digit is left gives the digital root 2. The Collatz sequence (halve if even, else 3n+1) takes 65 steps to reach 1.
LaTeX source of the formulas on this page
\[ 59987 = 223 \times 269 \]
59987 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 60480 |
| Euler totient φ(n) | 59496 |
| Square | 3598440169 |
| Cube | 215859630417803 |
| Square root | 244.922437 |
| Digit sum / digital root | 38 / 2 |
| Collatz steps to 1 | 65 |
| Scientific notation | 5.9987 × |
59987 in other forms
| Form | Value |
|---|---|
| In words | fifty-nine thousand nine hundred and eighty-seven |
| Binary (base 2) | 1110101001010011 |
| Octal (base 8) | 165123 |
| Hexadecimal (base 16) | EA53 |
| Base 3 | 10001021202 |
| As time | 59987 seconds = 16 h 39 min 47 s |
Is 59987 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 2) | 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 2) | A number is divisible by 5 if the last digit is 0 or 5. |
| 6 | No (remainder 5) | A number is divisible by 6 if it is divisible by both 2 and 3. |
| 7 | No (remainder 4) | 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 3) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 2) | 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 4) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 11) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 59987 a prime number?
No. 59987 = 223 × 269, so it is divisible by 223.
What are the factors of 59987?
1, 223, 269, 59987.
What is 59987 in binary?
1110101001010011 (hexadecimal EA53, octal 165123).
What is the square root of 59987?
About 244.9224.
Is 59987 divisible by 3?
No. Its digits add up to 38, which is not a multiple of 3.
What is special about the number 59987?
59987 is a semiprime: 223 × 269, the product of two primes.