31 × 20981

Prime Factor Structure

Factorization String 31 × 20981

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 671,424

Proper Divisor Sum 21,013

Digit Sum / Digital Root 17 (Root: 8)

Adjacent Primes #650401 ← → #650413

1 31 20,981 650,411

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

650,411 1,951,234 975,617 2,926,852 1,463,426 731,713 2,195,140 1,097,570 548,785 1,646,356 823,178 411,589 1,234,768 617,384 308,692 154,346 77,173 231,520 115,760 57,880 28,940 14,470 7,235 21,706 10,853 32,560 16,280 8,140 4,070 2,035 6,106 3,053 9,160 4,580 2,290 1,145 3,436 1,718 859 2,578 1,289 3,868 1,934 967 2,902 1,451 4,354 2,177 6,532 3,266 1,633 4,900 2,450 1,225 3,676 1,838 919 2,758 1,379 4,138

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