2 × 11 × 421 × 1993

Prime Factor Structure

Factorization String 2 × 11 × 421 × 1993

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 30,292,848

Proper Divisor Sum 11,833,682

Digit Sum / Digital Root 40 (Root: 4)

Adjacent Primes #18459157 ← → #18459173

1 2 11 22 421 842 1,993 3,986 4,631 9,262 21,923 43,846 839,053 1,678,106 9,229,583 18,459,166

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

18,459,166 9,229,583 27,688,750 13,844,375 41,533,126 20,766,563 62,299,690 31,149,845 93,449,536 46,724,768 23,362,384 11,681,192 5,840,596 2,920,298 1,460,149 4,380,448 2,190,224 1,095,112 547,556 273,778 136,889 410,668 205,334 102,667 308,002 154,001 462,004 231,002 115,501 346,504 173,252 86,626 43,313 129,940 64,970 32,485 97,456 48,728 24,364 12,182 6,091 18,274 9,137 27,412 13,706 6,853 20,560 10,280 5,140 2,570 1,285 3,856 1,928 964 482 241 724 362 181 544

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