2 × 5 × 21557

Prime Factor Structure

Factorization String 2 × 5 × 21557

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 388,044

Proper Divisor Sum 172,474

Digit Sum / Digital Root 20 (Root: 2)

Adjacent Primes #215563 ← → #215573

1 2 5 10 21,557 43,114 107,785 215,570

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

215,570 107,785 323,356 161,678 80,839 242,518 121,259 363,778 181,889 545,668 272,834 136,417 409,252 204,626 102,313 306,940 153,470 76,735 230,206 115,103 345,310 172,655 517,966 258,983 776,950 388,475 1,165,426 582,713 1,748,140 874,070 437,035 1,311,106 655,553 1,966,660 983,330 491,665 1,474,996 737,498 368,749 1,106,248 553,124 276,562 138,281 414,844 207,422 103,711 311,134 155,567 466,702 233,351 700,054 350,027 1,050,082 525,041 1,575,124 787,562 393,781 1,181,344 590,672 295,336

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