13 × 1638191

Prime Factor Structure

Factorization String 13 × 1638191

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 22,934,688

Proper Divisor Sum 1,638,205

Digit Sum / Digital Root 35 (Root: 8)

Adjacent Primes #21296477 ← → #21296489

1 13 1,638,191 21,296,483

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

21,296,483 63,889,450 31,944,725 95,834,176 47,917,088 23,958,544 11,979,272 5,989,636 2,994,818 1,497,409 4,492,228 2,246,114 1,123,057 3,369,172 1,684,586 842,293 2,526,880 1,263,440 631,720 315,860 157,930 78,965 236,896 118,448 59,224 29,612 14,806 7,403 22,210 11,105 33,316 16,658 8,329 24,988 12,494 6,247 18,742 9,371 28,114 14,057 42,172 21,086 10,543 31,630 15,815 47,446 23,723 71,170 35,585 106,756 53,378 26,689 80,068 40,034 20,017 60,052 30,026 15,013 45,040 22,520

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