3 × 7 × 19 × 491

Prime Factor Structure

Factorization String 3 × 7 × 19 × 491

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 314,880

Proper Divisor Sum 118,971

Digit Sum / Digital Root 33 (Root: 6)

Adjacent Primes #195907 ← → #195913

1 3 7 19 21 57 133 399 491 1,473 3,437 9,329 10,311 27,987 65,303 195,909

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

195,909 587,728 293,864 146,932 73,466 36,733 110,200 55,100 27,550 13,775 41,326 20,663 61,990 30,995 92,986 46,493 139,480 69,740 34,870 17,435 52,306 26,153 78,460 39,230 19,615 58,846 29,423 88,270 44,135 132,406 66,203 198,610 99,305 297,916 148,958 74,479 223,438 111,719 335,158 167,579 502,738 251,369 754,108 377,054 188,527 565,582 282,791 848,374 424,187 1,272,562 636,281 1,908,844 954,422 477,211 1,431,634 715,817 2,147,452 1,073,726 536,863 1,610,590

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