3² × 127 × 18719

Prime Factor Structure

Factorization String 3^2 × 127 × 18719

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 31,150,080

Proper Divisor Sum 9,754,263

Digit Sum / Digital Root 36 (Root: 9)

Adjacent Primes #21395791 ← → #21395821

1 3 9 127 381 1,143 18,719 56,157 168,471 2,377,313 7,131,939 21,395,817

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

21,395,817 64,187,452 32,093,726 16,046,863 48,140,590 24,070,295 72,210,886 36,105,443 108,316,330 54,158,165 162,474,496 81,237,248 40,618,624 20,309,312 10,154,656 5,077,328 2,538,664 1,269,332 634,666 317,333 952,000 476,000 238,000 119,000 59,500 29,750 14,875 44,626 22,313 66,940 33,470 16,735 50,206 25,103 75,310 37,655 112,966 56,483 169,450 84,725 254,176 127,088 63,544 31,772 15,886 7,943 23,830 11,915 35,746 17,873 53,620 26,810 13,405 40,216 20,108 10,054 5,027 15,082 7,541 22,624

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