3 × 11 × 13 × 19961

Prime Factor Structure

Factorization String 3 × 11 × 13 × 19961

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 13,414,464

Proper Divisor Sum 4,851,195

Digit Sum / Digital Root 39 (Root: 3)

Adjacent Primes #8563237 ← → #8563271

1 3 11 13 33 39 143 429 19,961 59,883 219,571 259,493 658,713 778,479 2,854,423 8,563,269

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

8,563,269 25,689,808 12,844,904 6,422,452 3,211,226 1,605,613 4,816,840 2,408,420 1,204,210 602,105 1,806,316 903,158 451,579 1,354,738 677,369 2,032,108 1,016,054 508,027 1,524,082 762,041 2,286,124 1,143,062 571,531 1,714,594 857,297 2,571,892 1,285,946 642,973 1,928,920 964,460 482,230 241,115 723,346 361,673 1,085,020 542,510 271,255 813,766 406,883 1,220,650 610,325 1,830,976 915,488 457,744 228,872 114,436 57,218 28,609 85,828 42,914 21,457 64,372 32,186 16,093 48,280 24,140 12,070 6,035 18,106 9,053

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