3 × 11 × 19 × 641

Prime Factor Structure

Factorization String 3 × 11 × 19 × 641

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 616,320

Proper Divisor Sum 214,413

Digit Sum / Digital Root 21 (Root: 3)

Adjacent Primes #401903 ← → #401909

1 3 11 19 33 57 209 627 641 1,923 7,051 12,179 21,153 36,537 133,969 401,907

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

401,907 1,205,722 602,861 1,808,584 904,292 452,146 226,073 678,220 339,110 169,555 508,666 254,333 763,000 381,500 190,750 95,375 286,126 143,063 429,190 214,595 643,786 321,893 965,680 482,840 241,420 120,710 60,355 181,066 90,533 271,600 135,800 67,900 33,950 16,975 50,926 25,463 76,390 38,195 114,586 57,293 171,880 85,940 42,970 21,485 64,456 32,228 16,114 8,057 24,172 12,086 6,043 18,130 9,065 27,196 13,598 6,799 20,398 10,199 30,598 15,299

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