2³ × 197 × 409

Prime Factor Structure

Factorization String 2^3 × 197 × 409

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 1,217,700

Proper Divisor Sum 573,116

Digit Sum / Digital Root 31 (Root: 4)

Adjacent Primes #644569 ← → #644593

1 2 4 8 197 394 409 788 818 1,576 1,636 3,272 80,573 161,146 322,292 644,584

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

644,584 322,292 161,146 80,573 241,720 120,860 60,430 30,215 90,646 45,323 135,970 67,985 203,956 101,978 50,989 152,968 76,484 38,242 19,121 57,364 28,682 14,341 43,024 21,512 10,756 5,378 2,689 8,068 4,034 2,017 6,052 3,026 1,513 4,540 2,270 1,135 3,406 1,703 5,110 2,555 7,666 3,833 11,500 5,750 2,875 8,626 4,313 12,940 6,470 3,235 9,706 4,853 14,560 7,280 3,640 1,820 910 455 1,366 683

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