3 × 5 × 19 × 661

Prime Factor Structure

Factorization String 3 × 5 × 19 × 661

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 317,760

Proper Divisor Sum 129,375

Digit Sum / Digital Root 33 (Root: 6)

Adjacent Primes #188369 ← → #188389

1 3 5 15 19 57 95 285 661 1,983 3,305 9,915 12,559 37,677 62,795 188,385

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

188,385 565,156 282,578 141,289 423,868 211,934 105,967 317,902 158,951 476,854 238,427 715,282 357,641 1,072,924 536,462 268,231 804,694 402,347 1,207,042 603,521 1,810,564 905,282 452,641 1,357,924 678,962 339,481 1,018,444 509,222 254,611 763,834 381,917 1,145,752 572,876 286,438 143,219 429,658 214,829 644,488 322,244 161,122 80,561 241,684 120,842 60,421 181,264 90,632 45,316 22,658 11,329 33,988 16,994 8,497 25,492 12,746 6,373 19,120 9,560 4,780 2,390 1,195

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