3 × 7 × 19 × 67

Prime Factor Structure

Factorization String 3 × 7 × 19 × 67

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 43,520

Proper Divisor Sum 16,787

Digit Sum / Digital Root 21 (Root: 3)

Adjacent Primes #26731 ← → #26737

1 3 7 19 21 57 67 133 201 399 469 1,273 1,407 3,819 8,911 26,733

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

26,733 80,200 40,100 20,050 10,025 30,076 15,038 7,519 22,558 11,279 33,838 16,919 50,758 25,379 76,138 38,069 114,208 57,104 28,552 14,276 7,138 3,569 10,708 5,354 2,677 8,032 4,016 2,008 1,004 502 251 754 377 1,132 566 283 850 425 1,276 638 319 958 479 1,438 719 2,158 1,079 3,238 1,619 4,858 2,429 7,288 3,644 1,822 911 2,734 1,367 4,102 2,051 6,154

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