3 × 5 × 11 × 1291

Prime Factor Structure

Factorization String 3 × 5 × 11 × 1291

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 372,096

Proper Divisor Sum 159,081

Digit Sum / Digital Root 12 (Root: 3)

Adjacent Primes #212999 ← → #213019

1 3 5 11 15 33 55 165 1,291 3,873 6,455 14,201 19,365 42,603 71,005 213,015

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

213,015 639,046 319,523 958,570 479,285 1,437,856 718,928 359,464 179,732 89,866 44,933 134,800 67,400 33,700 16,850 8,425 25,276 12,638 6,319 18,958 9,479 28,438 14,219 42,658 21,329 63,988 31,994 15,997 47,992 23,996 11,998 5,999 17,998 8,999 26,998 13,499 40,498 20,249 60,748 30,374 15,187 45,562 22,781 68,344 34,172 17,086 8,543 25,630 12,815 38,446 19,223 57,670 28,835 86,506 43,253 129,760 64,880 32,440 16,220 8,110

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