221537

Prime Factor Structure

Factorization String 221537

Distinct Prime Factors 1

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 2

Divisor Sum (σ) 221,538

Proper Divisor Sum 1

Digit Sum / Digital Root 20 (Root: 2)

Adjacent Primes #221509 ← → #221539

1 221,537

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

221,537 664,612 332,306 166,153 498,460 249,230 124,615 373,846 186,923 560,770 280,385 841,156 420,578 210,289 630,868 315,434 157,717 473,152 236,576 118,288 59,144 29,572 14,786 7,393 22,180 11,090 5,545 16,636 8,318 4,159 12,478 6,239 18,718 9,359 28,078 14,039 42,118 21,059 63,178 31,589 94,768 47,384 23,692 11,846 5,923 17,770 8,885 26,656 13,328 6,664 3,332 1,666 833 2,500 1,250 625 1,876 938 469 1,408

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