2 × 5 × 21563

Prime Factor Structure

Factorization String 2 × 5 × 21563

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 388,152

Proper Divisor Sum 172,522

Digit Sum / Digital Root 17 (Root: 8)

Adjacent Primes #215617 ← → #215653

1 2 5 10 21,563 43,126 107,815 215,630

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

215,630 107,815 323,446 161,723 485,170 242,585 727,756 363,878 181,939 545,818 272,909 818,728 409,364 204,682 102,341 307,024 153,512 76,756 38,378 19,189 57,568 28,784 14,392 7,196 3,598 1,799 5,398 2,699 8,098 4,049 12,148 6,074 3,037 9,112 4,556 2,278 1,139 3,418 1,709 5,128 2,564 1,282 641 1,924 962 481 1,444 722 361 1,084 542 271 814 407 1,222 611 1,834 917 2,752 1,376

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