11 × 19 × 43 × 71

Prime Factor Structure

Factorization String 11 × 19 × 43 × 71

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 760,320

Proper Divisor Sum 122,243

Digit Sum / Digital Root 31 (Root: 4)

Adjacent Primes #638063 ← → #638081

1 11 19 43 71 209 473 781 817 1,349 3,053 8,987 14,839 33,583 58,007 638,077

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

638,077 1,914,232 957,116 478,558 239,279 717,838 358,919 1,076,758 538,379 1,615,138 807,569 2,422,708 1,211,354 605,677 1,817,032 908,516 454,258 227,129 681,388 340,694 170,347 511,042 255,521 766,564 383,282 191,641 574,924 287,462 143,731 431,194 215,597 646,792 323,396 161,698 80,849 242,548 121,274 60,637 181,912 90,956 45,478 22,739 68,218 34,109 102,328 51,164 25,582 12,791 38,374 19,187 57,562 28,781 86,344 43,172 21,586 10,793 32,380 16,190 8,095 24,286

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