5 × 7 × 47 × 3989

Prime Factor Structure

Factorization String 5 × 7 × 47 × 3989

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 9,192,960

Proper Divisor Sum 2,631,055

Digit Sum / Digital Root 32 (Root: 5)

Adjacent Primes #6561887 ← → #6561911

1 5 7 35 47 235 329 1,645 3,989 19,945 27,923 139,615 187,483 937,415 1,312,381 6,561,905

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

6,561,905 19,685,716 9,842,858 4,921,429 14,764,288 7,382,144 3,691,072 1,845,536 922,768 461,384 230,692 115,346 57,673 173,020 86,510 43,255 129,766 64,883 194,650 97,325 291,976 145,988 72,994 36,497 109,492 54,746 27,373 82,120 41,060 20,530 10,265 30,796 15,398 7,699 23,098 11,549 34,648 17,324 8,662 4,331 12,994 6,497 19,492 9,746 4,873 14,620 7,310 3,655 10,966 5,483 16,450 8,225 24,676 12,338 6,169 18,508 9,254 4,627 13,882 6,941

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