3 × 5 × 17 × 19 × 43

Prime Factor Structure

Factorization String 3 × 5 × 17 × 19 × 43

Distinct Prime Factors 5

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 32

Divisor Sum (σ) 380,160

Proper Divisor Sum 171,825

Digit Sum / Digital Root 21 (Root: 3)

Adjacent Primes #208333 ← → #208337

1 3 5 15 17 19 43 51 57 85 95 129 215 255 285 323 645 731 817 969 1,615 2,193 2,451 3,655 4,085 4,845 10,965 12,255 13,889 41,667 69,445 208,335

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

208,335 625,006 312,503 937,510 468,755 1,406,266 703,133 2,109,400 1,054,700 527,350 263,675 791,026 395,513 1,186,540 593,270 296,635 889,906 444,953 1,334,860 667,430 333,715 1,001,146 500,573 1,501,720 750,860 375,430 187,715 563,146 281,573 844,720 422,360 211,180 105,590 52,795 158,386 79,193 237,580 118,790 59,395 178,186 89,093 267,280 133,640 66,820 33,410 16,705 50,116 25,058 12,529 37,588 18,794 9,397 28,192 14,096 7,048 3,524 1,762 881 2,644 1,322

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