2 × 7 × 20521

Prime Factor Structure

Factorization String 2 × 7 × 20521

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 492,528

Proper Divisor Sum 205,234

Digit Sum / Digital Root 32 (Root: 5)

Adjacent Primes #287291 ← → #287297

1 2 7 14 20,521 41,042 143,647 287,294

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

287,294 143,647 430,942 215,471 646,414 323,207 969,622 484,811 1,454,434 727,217 2,181,652 1,090,826 545,413 1,636,240 818,120 409,060 204,530 102,265 306,796 153,398 76,699 230,098 115,049 345,148 172,574 86,287 258,862 129,431 388,294 194,147 582,442 291,221 873,664 436,832 218,416 109,208 54,604 27,302 13,651 40,954 20,477 61,432 30,716 15,358 7,679 23,038 11,519 34,558 17,279 51,838 25,919 77,758 38,879 116,638 58,319 174,958 87,479 262,438 131,219 393,658

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