3 × 5 × 61 × 21871

Prime Factor Structure

Factorization String 3 × 5 × 61 × 21871

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 32,545,536

Proper Divisor Sum 12,533,571

Digit Sum / Digital Root 24 (Root: 6)

Adjacent Primes #20011951 ← → #20011967

1 3 5 15 61 183 305 915 21,871 65,613 109,355 328,065 1,334,131 4,002,393 6,670,655 20,011,965

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

20,011,965 60,035,896 30,017,948 15,008,974 7,504,487 22,513,462 11,256,731 33,770,194 16,885,097 50,655,292 25,327,646 12,663,823 37,991,470 18,995,735 56,987,206 28,493,603 85,480,810 42,740,405 128,221,216 64,110,608 32,055,304 16,027,652 8,013,826 4,006,913 12,020,740 6,010,370 3,005,185 9,015,556 4,507,778 2,253,889 6,761,668 3,380,834 1,690,417 5,071,252 2,535,626 1,267,813 3,803,440 1,901,720 950,860 475,430 237,715 713,146 356,573 1,069,720 534,860 267,430 133,715 401,146 200,573 601,720 300,860 150,430 75,215 225,646 112,823 338,470 169,235 507,706 253,853 761,560

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