3² × 11 × 19² × 23

Prime Factor Structure

Factorization String 3^2 × 11 × 19^2 × 23

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 36

Divisor Sum (σ) 1,426,464

Proper Divisor Sum 604,467

Digit Sum / Digital Root 36 (Root: 9)

Adjacent Primes #821993 ← → #821999

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

821,997 2,465,992 1,232,996 616,498 308,249 924,748 462,374 231,187 693,562 346,781 1,040,344 520,172 260,086 130,043 390,130 195,065 585,196 292,598 146,299 438,898 219,449 658,348 329,174 164,587 493,762 246,881 740,644 370,322 185,161 555,484 277,742 138,871 416,614 208,307 624,922 312,461 937,384 468,692 234,346 117,173 351,520 175,760 87,880 43,940 21,970 10,985 32,956 16,478 8,239 24,718 12,359 37,078 18,539 55,618 27,809 83,428 41,714 20,857 62,572 31,286

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