21,521
21521
Deficient
Odd
Prime
Prime Factor Structure
Factorization String
21521
Distinct Prime Factors
1
Square Status
No
Abundance Measure
Deficient
Analytical Properties
Total Divisors
2
Divisor Sum (σ)
21,522
Proper Divisor Sum
1
Digit Sum / Digital Root
11 (Root: 2)
Radix Representation
| Decimal | 21521 |
| Binary | 101010000010001 (15 bits) |
| Octal | 0o52021 |
| Hexadecimal | 0x5411 |
Divisor Catalog (2)
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.