2² × 5² × 19979

Prime Factor Structure

Factorization String 2^2 × 5^2 × 19979

Distinct Prime Factors 3

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 18

Divisor Sum (σ) 4,335,660

Proper Divisor Sum 2,337,760

Digit Sum / Digital Root 35 (Root: 8)

Adjacent Primes #1997899 ← → #1997903

1 2 4 5 10 20 25 50 100 19,979 39,958 79,916 99,895 199,790 399,580 499,475 998,950 1,997,900

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

1,997,900 998,950 499,475 1,498,426 749,213 2,247,640 1,123,820 561,910 280,955 842,866 421,433 1,264,300 632,150 316,075 948,226 474,113 1,422,340 711,170 355,585 1,066,756 533,378 266,689 800,068 400,034 200,017 600,052 300,026 150,013 450,040 225,020 112,510 56,255 168,766 84,383 253,150 126,575 379,726 189,863 569,590 284,795 854,386 427,193 1,281,580 640,790 320,395 961,186 480,593 1,441,780 720,890 360,445 1,081,336 540,668 270,334 135,167 405,502 202,751 608,254 304,127 912,382 456,191

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