2 × 5 × 17 × 1279

Prime Factor Structure

Factorization String 2 × 5 × 17 × 1279

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 414,720

Proper Divisor Sum 197,290

Digit Sum / Digital Root 17 (Root: 8)

Adjacent Primes #217429 ← → #217439

1 2 5 10 17 34 85 170 1,279 2,558 6,395 12,790 21,743 43,486 108,715 217,430

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

217,430 108,715 326,146 163,073 489,220 244,610 122,305 366,916 183,458 91,729 275,188 137,594 68,797 206,392 103,196 51,598 25,799 77,398 38,699 116,098 58,049 174,148 87,074 43,537 130,612 65,306 32,653 97,960 48,980 24,490 12,245 36,736 18,368 9,184 4,592 2,296 1,148 574 287 862 431 1,294 647 1,942 971 2,914 1,457 4,372 2,186 1,093 3,280 1,640 820 410 205 616 308 154 77 232

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