13² × 3943

Prime Factor Structure

Factorization String 13^2 × 3943

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 6

Divisor Sum (σ) 721,752

Proper Divisor Sum 55,385

Digit Sum / Digital Root 34 (Root: 7)

Adjacent Primes #666353 ← → #666403

1 13 169 3,943 51,259 666,367

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

666,367 1,999,102 999,551 2,998,654 1,499,327 4,497,982 2,248,991 6,746,974 3,373,487 10,120,462 5,060,231 15,180,694 7,590,347 22,771,042 11,385,521 34,156,564 17,078,282 8,539,141 25,617,424 12,808,712 6,404,356 3,202,178 1,601,089 4,803,268 2,401,634 1,200,817 3,602,452 1,801,226 900,613 2,701,840 1,350,920 675,460 337,730 168,865 506,596 253,298 126,649 379,948 189,974 94,987 284,962 142,481 427,444 213,722 106,861 320,584 160,292 80,146 40,073 120,220 60,110 30,055 90,166 45,083 135,250 67,625 202,876 101,438 50,719 152,158

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