3 × 5 × 19 × 73973

Prime Factor Structure

Factorization String 3 × 5 × 19 × 73973

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 35,507,520

Proper Divisor Sum 14,425,215

Digit Sum / Digital Root 21 (Root: 3)

Adjacent Primes #21082301 ← → #21082309

1 3 5 15 19 57 95 285 73,973 221,919 369,865 1,109,595 1,405,487 4,216,461 7,027,435 21,082,305

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

21,082,305 63,246,916 31,623,458 15,811,729 47,435,188 23,717,594 11,858,797 35,576,392 17,788,196 8,894,098 4,447,049 13,341,148 6,670,574 3,335,287 10,005,862 5,002,931 15,008,794 7,504,397 22,513,192 11,256,596 5,628,298 2,814,149 8,442,448 4,221,224 2,110,612 1,055,306 527,653 1,582,960 791,480 395,740 197,870 98,935 296,806 148,403 445,210 222,605 667,816 333,908 166,954 83,477 250,432 125,216 62,608 31,304 15,652 7,826 3,913 11,740 5,870 2,935 8,806 4,403 13,210 6,605 19,816 9,908 4,954 2,477 7,432 3,716

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