681,216
28 × 3 × 887
Abundant
Even
Composite
681,216 factors as 2^8 × 3 × 887. Its 36 positive divisors give a proper-divisor sum of 1,133,856, so this integer is abundant. The Collatz stopping time is 61 steps.
Resources
Prime Factor Structure
Factorization String
2^8 × 3 × 887
Distinct Prime Factors
3
Square Status
No
Abundance Measure
Abundant
Analytical Properties
Total Divisors
36
Divisor Sum (σ)
1,815,072
Proper Divisor Sum
1,133,856
Digit Sum / Digital Root
24 (Root: 6)
Adjacent Primes
#681179 ← → #681221
Radix Representation
| Decimal | 681216 |
| Binary | 10100110010100000000 (20 bits) |
| Octal | 0o2462400 |
| Hexadecimal | 0xA6500 |
Divisor Catalog (5 of 36)
Collatz Trajectory (61 steps to reach 1)
Iterative sequence n → n/2 (if even) or 3n+1 (if odd):
Showing the first 5 trajectory entries; the stopping-time total above is unchanged.