3 × 7 × 139 × 281

Prime Factor Structure

Factorization String 3 × 7 × 139 × 281

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 1,263,360

Proper Divisor Sum 443,121

Digit Sum / Digital Root 24 (Root: 6)

Adjacent Primes #820231 ← → #820241

1 3 7 21 139 281 417 843 973 1,967 2,919 5,901 39,059 117,177 273,413 820,239

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

820,239 2,460,718 1,230,359 3,691,078 1,845,539 5,536,618 2,768,309 8,304,928 4,152,464 2,076,232 1,038,116 519,058 259,529 778,588 389,294 194,647 583,942 291,971 875,914 437,957 1,313,872 656,936 328,468 164,234 82,117 246,352 123,176 61,588 30,794 15,397 46,192 23,096 11,548 5,774 2,887 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 20,824 10,412 5,206

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