31 × 20681

Prime Factor Structure

Factorization String 31 × 20681

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 661,824

Proper Divisor Sum 20,713

Digit Sum / Digital Root 14 (Root: 5)

Adjacent Primes #641101 ← → #641129

1 31 20,681 641,111

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

641,111 1,923,334 961,667 2,885,002 1,442,501 4,327,504 2,163,752 1,081,876 540,938 270,469 811,408 405,704 202,852 101,426 50,713 152,140 76,070 38,035 114,106 57,053 171,160 85,580 42,790 21,395 64,186 32,093 96,280 48,140 24,070 12,035 36,106 18,053 54,160 27,080 13,540 6,770 3,385 10,156 5,078 2,539 7,618 3,809 11,428 5,714 2,857 8,572 4,286 2,143 6,430 3,215 9,646 4,823 14,470 7,235 21,706 10,853 32,560 16,280 8,140 4,070

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