3 × 7 × 31 × 73 × 421

Prime Factor Structure

Factorization String 3 × 7 × 31 × 73 × 421

Distinct Prime Factors 5

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 32

Divisor Sum (σ) 31,977,472

Proper Divisor Sum 11,970,289

Digit Sum / Digital Root 21 (Root: 3)

Adjacent Primes #20007173 ← → #20007203

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

20,007,183 60,021,550 30,010,775 90,032,326 45,016,163 135,048,490 67,524,245 202,572,736 101,286,368 50,643,184 25,321,592 12,660,796 6,330,398 3,165,199 9,495,598 4,747,799 14,243,398 7,121,699 21,365,098 10,682,549 32,047,648 16,023,824 8,011,912 4,005,956 2,002,978 1,001,489 3,004,468 1,502,234 751,117 2,253,352 1,126,676 563,338 281,669 845,008 422,504 211,252 105,626 52,813 158,440 79,220 39,610 19,805 59,416 29,708 14,854 7,427 22,282 11,141 33,424 16,712 8,356 4,178 2,089 6,268 3,134 1,567 4,702 2,351 7,054 3,527

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