5 × 71 × 131 × 431

Prime Factor Structure

Factorization String 5 × 71 × 131 × 431

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 24,634,368

Proper Divisor Sum 4,590,713

Digit Sum / Digital Root 25 (Root: 7)

Adjacent Primes #20043641 ← → #20043691

1 5 71 131 355 431 655 2,155 9,301 30,601 46,505 56,461 153,005 282,305 4,008,731 20,043,655

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

20,043,655 60,130,966 30,065,483 90,196,450 45,098,225 135,294,676 67,647,338 33,823,669 101,471,008 50,735,504 25,367,752 12,683,876 6,341,938 3,170,969 9,512,908 4,756,454 2,378,227 7,134,682 3,567,341 10,702,024 5,351,012 2,675,506 1,337,753 4,013,260 2,006,630 1,003,315 3,009,946 1,504,973 4,514,920 2,257,460 1,128,730 564,365 1,693,096 846,548 423,274 211,637 634,912 317,456 158,728 79,364 39,682 19,841 59,524 29,762 14,881 44,644 22,322 11,161 33,484 16,742 8,371 25,114 12,557 37,672 18,836 9,418 4,709 14,128 7,064 3,532

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