991 × 1997

Prime Factor Structure

Factorization String 991 × 1997

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 1,982,016

Proper Divisor Sum 2,989

Digit Sum / Digital Root 35 (Root: 8)

Adjacent Primes #1978997 ← → #1979039

1 991 1,997 1,979,027

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

1,979,027 5,937,082 2,968,541 8,905,624 4,452,812 2,226,406 1,113,203 3,339,610 1,669,805 5,009,416 2,504,708 1,252,354 626,177 1,878,532 939,266 469,633 1,408,900 704,450 352,225 1,056,676 528,338 264,169 792,508 396,254 198,127 594,382 297,191 891,574 445,787 1,337,362 668,681 2,006,044 1,003,022 501,511 1,504,534 752,267 2,256,802 1,128,401 3,385,204 1,692,602 846,301 2,538,904 1,269,452 634,726 317,363 952,090 476,045 1,428,136 714,068 357,034 178,517 535,552 267,776 133,888 66,944 33,472 16,736 8,368 4,184 2,092

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