3² × 5 × 17 × 29²

Prime Factor Structure

Factorization String 3^2 × 5 × 17 × 29^2

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 36

Divisor Sum (σ) 1,222,884

Proper Divisor Sum 579,519

Digit Sum / Digital Root 27 (Root: 9)

Adjacent Primes #643303 ← → #643369

1 3 5 9 15 17 29 45 51 85 87 145 153 255 261 435 493 765 841 1,305 1,479 2,465 2,523 4,205 4,437 7,395 7,569 12,615 14,297 22,185 37,845 42,891 71,485 128,673 214,455 643,365

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

643,365 1,930,096 965,048 482,524 241,262 120,631 361,894 180,947 542,842 271,421 814,264 407,132 203,566 101,783 305,350 152,675 458,026 229,013 687,040 343,520 171,760 85,880 42,940 21,470 10,735 32,206 16,103 48,310 24,155 72,466 36,233 108,700 54,350 27,175 81,526 40,763 122,290 61,145 183,436 91,718 45,859 137,578 68,789 206,368 103,184 51,592 25,796 12,898 6,449 19,348 9,674 4,837 14,512 7,256 3,628 1,814 907 2,722 1,361 4,084

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