2 × 3² × 5 × 7 × 1019

Prime Factor Structure

Factorization String 2 × 3^2 × 5 × 7 × 1019

Distinct Prime Factors 5

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 48

Divisor Sum (σ) 1,909,440

Proper Divisor Sum 1,267,470

Digit Sum / Digital Root 27 (Root: 9)

Adjacent Primes #641969 ← → #641981

1 2 3 5 6 7 9 10 14 15 18 21 30 35 42 45 63 70 90 105 126 210 315 630 1,019 2,038 3,057 5,095 6,114 7,133 9,171 10,190 14,266 15,285 18,342 21,399 30,570 35,665 42,798 45,855 64,197 71,330 91,710 106,995 128,394 213,990 320,985 641,970

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

641,970 320,985 962,956 481,478 240,739 722,218 361,109 1,083,328 541,664 270,832 135,416 67,708 33,854 16,927 50,782 25,391 76,174 38,087 114,262 57,131 171,394 85,697 257,092 128,546 64,273 192,820 96,410 48,205 144,616 72,308 36,154 18,077 54,232 27,116 13,558 6,779 20,338 10,169 30,508 15,254 7,627 22,882 11,441 34,324 17,162 8,581 25,744 12,872 6,436 3,218 1,609 4,828 2,414 1,207 3,622 1,811 5,434 2,717 8,152 4,076

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