20,865
3 × 5 × 13 × 107
Deficient
Odd
Composite
Prime Factor Structure
Factorization String
3 × 5 × 13 × 107
Distinct Prime Factors
4
Square Status
No
Abundance Measure
Deficient
Analytical Properties
Total Divisors
16
Divisor Sum (σ)
36,288
Proper Divisor Sum
15,423
Digit Sum / Digital Root
21 (Root: 3)
Radix Representation
| Decimal | 20865 |
| Binary | 101000110000001 (15 bits) |
| Octal | 0o50601 |
| Hexadecimal | 0x5181 |
Divisor Catalog (16)
Collatz Trajectory (149 steps to reach 1)
Iterative sequence n → n/2 (if even) or 3n+1 (if odd):
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