3² × 31 × 75553

Prime Factor Structure

Factorization String 3^2 × 31 × 75553

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 31,430,464

Proper Divisor Sum 10,351,177

Digit Sum / Digital Root 36 (Root: 9)

Adjacent Primes #21079271 ← → #21079297

1 3 9 31 93 279 75,553 226,659 679,977 2,342,143 7,026,429 21,079,287

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

21,079,287 63,237,862 31,618,931 94,856,794 47,428,397 142,285,192 71,142,596 35,571,298 17,785,649 53,356,948 26,678,474 13,339,237 40,017,712 20,008,856 10,004,428 5,002,214 2,501,107 7,503,322 3,751,661 11,254,984 5,627,492 2,813,746 1,406,873 4,220,620 2,110,310 1,055,155 3,165,466 1,582,733 4,748,200 2,374,100 1,187,050 593,525 1,780,576 890,288 445,144 222,572 111,286 55,643 166,930 83,465 250,396 125,198 62,599 187,798 93,899 281,698 140,849 422,548 211,274 105,637 316,912 158,456 79,228 39,614 19,807 59,422 29,711 89,134 44,567 133,702

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