3 × 5 × 17 × 2621

Prime Factor Structure

Factorization String 3 × 5 × 17 × 2621

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 1,132,704

Proper Divisor Sum 464,349

Digit Sum / Digital Root 33 (Root: 6)

Adjacent Primes #668347 ← → #668407

1 3 5 15 17 51 85 255 2,621 7,863 13,105 39,315 44,557 133,671 222,785 668,355

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

668,355 2,005,066 1,002,533 3,007,600 1,503,800 751,900 375,950 187,975 563,926 281,963 845,890 422,945 1,268,836 634,418 317,209 951,628 475,814 237,907 713,722 356,861 1,070,584 535,292 267,646 133,823 401,470 200,735 602,206 301,103 903,310 451,655 1,354,966 677,483 2,032,450 1,016,225 3,048,676 1,524,338 762,169 2,286,508 1,143,254 571,627 1,714,882 857,441 2,572,324 1,286,162 643,081 1,929,244 964,622 482,311 1,446,934 723,467 2,170,402 1,085,201 3,255,604 1,627,802 813,901 2,441,704 1,220,852 610,426 305,213 915,640

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