3 × 7 × 19 × 431

Prime Factor Structure

Factorization String 3 × 7 × 19 × 431

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 276,480

Proper Divisor Sum 104,511

Digit Sum / Digital Root 33 (Root: 6)

Adjacent Primes #171947 ← → #172001

1 3 7 19 21 57 133 399 431 1,293 3,017 8,189 9,051 24,567 57,323 171,969

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

171,969 515,908 257,954 128,977 386,932 193,466 96,733 290,200 145,100 72,550 36,275 108,826 54,413 163,240 81,620 40,810 20,405 61,216 30,608 15,304 7,652 3,826 1,913 5,740 2,870 1,435 4,306 2,153 6,460 3,230 1,615 4,846 2,423 7,270 3,635 10,906 5,453 16,360 8,180 4,090 2,045 6,136 3,068 1,534 767 2,302 1,151 3,454 1,727 5,182 2,591 7,774 3,887 11,662 5,831 17,494 8,747 26,242 13,121 39,364

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