643121

Prime Factor Structure

Factorization String 643121

Distinct Prime Factors 1

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 2

Divisor Sum (σ) 643,122

Proper Divisor Sum 1

Digit Sum / Digital Root 17 (Root: 8)

Adjacent Primes #643099 ← → #643129

1 643,121

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

643,121 1,929,364 964,682 482,341 1,447,024 723,512 361,756 180,878 90,439 271,318 135,659 406,978 203,489 610,468 305,234 152,617 457,852 228,926 114,463 343,390 171,695 515,086 257,543 772,630 386,315 1,158,946 579,473 1,738,420 869,210 434,605 1,303,816 651,908 325,954 162,977 488,932 244,466 122,233 366,700 183,350 91,675 275,026 137,513 412,540 206,270 103,135 309,406 154,703 464,110 232,055 696,166 348,083 1,044,250 522,125 1,566,376 783,188 391,594 195,797 587,392 293,696 146,848

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