2² × 3² × 5 × 11²

Prime Factor Structure

Factorization String 2^2 × 3^2 × 5 × 11^2

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 54

Divisor Sum (σ) 72,618

Proper Divisor Sum 50,838

Digit Sum / Digital Root 18 (Root: 9)

Adjacent Primes #21773 ← → #21787

Radix Representation

Decimal	21780
Binary	101010100010100 (15 bits)
Octal	0o52424
Hexadecimal	0x5514

Divisor Catalog (54)

1 2 3 4 5 6 9 10 11 12 15 18 20 22 30 33 36 44 45 55 60 66 90 99 110 121 132 165 180 198 220 242 330 363 396 484 495 605 660 726 990 1,089 1,210 1,452 1,815 1,980 2,178 2,420 3,630 4,356 5,445 7,260 10,890 21,780

Collatz Trajectory (56 steps to reach 1)

Iterative sequence n → n/2 (if even) or 3n+1 (if odd):

21,780 10,890 5,445 16,336 8,168 4,084 2,042 1,021 3,064 1,532 766 383 1,150 575 1,726 863 2,590 1,295 3,886 1,943 5,830 2,915 8,746 4,373 13,120 6,560 3,280 1,640 820 410 205 616 308 154 77 232 116 58 29 88 44 22 11 34 17 52 26 13 40 20 10 5 16 8 4 2 1

Active Feeder Network

Other feeder batches with open delivery windows. Each feeder keeps its own target batch.

Feeder #6,449,649 Feeder #6,177,699 Feeder #4,494,486 Feeder #906,051 Feeder #1,285,993 Feeder #7,584,379 Feeder #4,761,186 Feeder #626,174

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