3 × 7 × 19 × 4481

Prime Factor Structure

Factorization String 3 × 7 × 19 × 4481

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 2,868,480

Proper Divisor Sum 1,080,561

Digit Sum / Digital Root 42 (Root: 6)

Adjacent Primes #1787911 ← → #1787923

1 3 7 19 21 57 133 399 4,481 13,443 31,367 85,139 94,101 255,417 595,973 1,787,919

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

1,787,919 5,363,758 2,681,879 8,045,638 4,022,819 12,068,458 6,034,229 18,102,688 9,051,344 4,525,672 2,262,836 1,131,418 565,709 1,697,128 848,564 424,282 212,141 636,424 318,212 159,106 79,553 238,660 119,330 59,665 178,996 89,498 44,749 134,248 67,124 33,562 16,781 50,344 25,172 12,586 6,293 18,880 9,440 4,720 2,360 1,180 590 295 886 443 1,330 665 1,996 998 499 1,498 749 2,248 1,124 562 281 844 422 211 634 317

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