21,509
137 × 157
Deficient
Odd
Composite
Prime Factor Structure
Factorization String
137 × 157
Distinct Prime Factors
2
Square Status
No
Abundance Measure
Deficient
Analytical Properties
Total Divisors
4
Divisor Sum (σ)
21,804
Proper Divisor Sum
295
Digit Sum / Digital Root
17 (Root: 8)
Radix Representation
| Decimal | 21509 |
| Binary | 101010000000101 (15 bits) |
| Octal | 0o52005 |
| Hexadecimal | 0x5405 |
Divisor Catalog (4)
Collatz Trajectory (74 steps to reach 1)
Iterative sequence n → n/2 (if even) or 3n+1 (if odd):
Active Feeder Network
Other feeder batches with open delivery windows. Each feeder keeps its own target batch.