3 × 5 × 17 × 857

Prime Factor Structure

Factorization String 3 × 5 × 17 × 857

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 370,656

Proper Divisor Sum 152,121

Digit Sum / Digital Root 24 (Root: 6)

Adjacent Primes #218531 ← → #218549

1 3 5 15 17 51 85 255 857 2,571 4,285 12,855 14,569 43,707 72,845 218,535

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

218,535 655,606 327,803 983,410 491,705 1,475,116 737,558 368,779 1,106,338 553,169 1,659,508 829,754 414,877 1,244,632 622,316 311,158 155,579 466,738 233,369 700,108 350,054 175,027 525,082 262,541 787,624 393,812 196,906 98,453 295,360 147,680 73,840 36,920 18,460 9,230 4,615 13,846 6,923 20,770 10,385 31,156 15,578 7,789 23,368 11,684 5,842 2,921 8,764 4,382 2,191 6,574 3,287 9,862 4,931 14,794 7,397 22,192 11,096 5,548 2,774 1,387

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