3² × 5² × 7 × 137

Prime Factor Structure

Factorization String 3^2 × 5^2 × 7 × 137

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 36

Divisor Sum (σ) 444,912

Proper Divisor Sum 229,137

Digit Sum / Digital Root 27 (Root: 9)

Adjacent Primes #215771 ← → #215797

1 3 5 7 9 15 21 25 35 45 63 75 105 137 175 225 315 411 525 685 959 1,233 1,575 2,055 2,877 3,425 4,795 6,165 8,631 10,275 14,385 23,975 30,825 43,155 71,925 215,775

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

215,775 647,326 323,663 970,990 485,495 1,456,486 728,243 2,184,730 1,092,365 3,277,096 1,638,548 819,274 409,637 1,228,912 614,456 307,228 153,614 76,807 230,422 115,211 345,634 172,817 518,452 259,226 129,613 388,840 194,420 97,210 48,605 145,816 72,908 36,454 18,227 54,682 27,341 82,024 41,012 20,506 10,253 30,760 15,380 7,690 3,845 11,536 5,768 2,884 1,442 721 2,164 1,082 541 1,624 812 406 203 610 305 916 458 229

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