3 × 5 × 13 × 1637

Prime Factor Structure

Factorization String 3 × 5 × 13 × 1637

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 550,368

Proper Divisor Sum 231,153

Digit Sum / Digital Root 21 (Root: 3)

Adjacent Primes #319211 ← → #319223

1 3 5 13 15 39 65 195 1,637 4,911 8,185 21,281 24,555 63,843 106,405 319,215

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

319,215 957,646 478,823 1,436,470 718,235 2,154,706 1,077,353 3,232,060 1,616,030 808,015 2,424,046 1,212,023 3,636,070 1,818,035 5,454,106 2,727,053 8,181,160 4,090,580 2,045,290 1,022,645 3,067,936 1,533,968 766,984 383,492 191,746 95,873 287,620 143,810 71,905 215,716 107,858 53,929 161,788 80,894 40,447 121,342 60,671 182,014 91,007 273,022 136,511 409,534 204,767 614,302 307,151 921,454 460,727 1,382,182 691,091 2,073,274 1,036,637 3,109,912 1,554,956 777,478 388,739 1,166,218 583,109 1,749,328 874,664 437,332

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