19 × 53 × 21247

Prime Factor Structure

Factorization String 19 × 53 × 21247

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 22,947,840

Proper Divisor Sum 1,552,111

Digit Sum / Digital Root 38 (Root: 2)

Adjacent Primes #21395723 ← → #21395747

1 19 53 1,007 21,247 403,693 1,126,091 21,395,729

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

21,395,729 64,187,188 32,093,594 16,046,797 48,140,392 24,070,196 12,035,098 6,017,549 18,052,648 9,026,324 4,513,162 2,256,581 6,769,744 3,384,872 1,692,436 846,218 423,109 1,269,328 634,664 317,332 158,666 79,333 238,000 119,000 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.