13 × 17² × 59

Prime Factor Structure

Factorization String 13 × 17^2 × 59

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 257,880

Proper Divisor Sum 36,217

Digit Sum / Digital Root 20 (Root: 2)

Adjacent Primes #221659 ← → #221671

1 13 17 59 221 289 767 1,003 3,757 13,039 17,051 221,663

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

221,663 664,990 332,495 997,486 498,743 1,496,230 748,115 2,244,346 1,122,173 3,366,520 1,683,260 841,630 420,815 1,262,446 631,223 1,893,670 946,835 2,840,506 1,420,253 4,260,760 2,130,380 1,065,190 532,595 1,597,786 798,893 2,396,680 1,198,340 599,170 299,585 898,756 449,378 224,689 674,068 337,034 168,517 505,552 252,776 126,388 63,194 31,597 94,792 47,396 23,698 11,849 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.