2² × 19 × 31 × 8929

Prime Factor Structure

Factorization String 2^2 × 19 × 31 × 8929

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 40,006,400

Proper Divisor Sum 18,969,676

Digit Sum / Digital Root 25 (Root: 7)

Adjacent Primes #21036721 ← → #21036737

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

21,036,724 10,518,362 5,259,181 15,777,544 7,888,772 3,944,386 1,972,193 5,916,580 2,958,290 1,479,145 4,437,436 2,218,718 1,109,359 3,328,078 1,664,039 4,992,118 2,496,059 7,488,178 3,744,089 11,232,268 5,616,134 2,808,067 8,424,202 4,212,101 12,636,304 6,318,152 3,159,076 1,579,538 789,769 2,369,308 1,184,654 592,327 1,776,982 888,491 2,665,474 1,332,737 3,998,212 1,999,106 999,553 2,998,660 1,499,330 749,665 2,248,996 1,124,498 562,249 1,686,748 843,374 421,687 1,265,062 632,531 1,897,594 948,797 2,846,392 1,423,196 711,598 355,799 1,067,398 533,699 1,601,098 800,549

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