139 × 143971

Prime Factor Structure

Factorization String 139 × 143971

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 20,156,080

Proper Divisor Sum 144,111

Digit Sum / Digital Root 28 (Root: 1)

Adjacent Primes #20011967 ← → #20011987

1 139 143,971 20,011,969

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

20,011,969 60,035,908 30,017,954 15,008,977 45,026,932 22,513,466 11,256,733 33,770,200 16,885,100 8,442,550 4,221,275 12,663,826 6,331,913 18,995,740 9,497,870 4,748,935 14,246,806 7,123,403 21,370,210 10,685,105 32,055,316 16,027,658 8,013,829 24,041,488 12,020,744 6,010,372 3,005,186 1,502,593 4,507,780 2,253,890 1,126,945 3,380,836 1,690,418 845,209 2,535,628 1,267,814 633,907 1,901,722 950,861 2,852,584 1,426,292 713,146 356,573 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.