3 × 13 × 31 × 179

Prime Factor Structure

Factorization String 3 × 13 × 31 × 179

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 322,560

Proper Divisor Sum 106,149

Digit Sum / Digital Root 15 (Root: 6)

Adjacent Primes #216401 ← → #216421

1 3 13 31 39 93 179 403 537 1,209 2,327 5,549 6,981 16,647 72,137 216,411

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

216,411 649,234 324,617 973,852 486,926 243,463 730,390 365,195 1,095,586 547,793 1,643,380 821,690 410,845 1,232,536 616,268 308,134 154,067 462,202 231,101 693,304 346,652 173,326 86,663 259,990 129,995 389,986 194,993 584,980 292,490 146,245 438,736 219,368 109,684 54,842 27,421 82,264 41,132 20,566 10,283 30,850 15,425 46,276 23,138 11,569 34,708 17,354 8,677 26,032 13,016 6,508 3,254 1,627 4,882 2,441 7,324 3,662 1,831 5,494 2,747 8,242

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