221671

Prime Factor Structure

Factorization String 221671

Distinct Prime Factors 1

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 2

Divisor Sum (σ) 221,672

Proper Divisor Sum 1

Digit Sum / Digital Root 19 (Root: 1)

Adjacent Primes #221659 ← → #221677

1 221,671

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

221,671 665,014 332,507 997,522 498,761 1,496,284 748,142 374,071 1,122,214 561,107 1,683,322 841,661 2,524,984 1,262,492 631,246 315,623 946,870 473,435 1,420,306 710,153 2,130,460 1,065,230 532,615 1,597,846 798,923 2,396,770 1,198,385 3,595,156 1,797,578 898,789 2,696,368 1,348,184 674,092 337,046 168,523 505,570 252,785 758,356 379,178 189,589 568,768 284,384 142,192 71,096 35,548 17,774 8,887 26,662 13,331 39,994 19,997 59,992 29,996 14,998 7,499 22,498 11,249 33,748 16,874 8,437

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