3² × 5 × 17 × 521

Prime Factor Structure

Factorization String 3^2 × 5 × 17 × 521

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 732,888

Proper Divisor Sum 334,323

Digit Sum / Digital Root 36 (Root: 9)

Adjacent Primes #398557 ← → #398569

1 3 5 9 15 17 45 51 85 153 255 521 765 1,563 2,605 4,689 7,815 8,857 23,445 26,571 44,285 79,713 132,855 398,565

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

398,565 1,195,696 597,848 298,924 149,462 74,731 224,194 112,097 336,292 168,146 84,073 252,220 126,110 63,055 189,166 94,583 283,750 141,875 425,626 212,813 638,440 319,220 159,610 79,805 239,416 119,708 59,854 29,927 89,782 44,891 134,674 67,337 202,012 101,006 50,503 151,510 75,755 227,266 113,633 340,900 170,450 85,225 255,676 127,838 63,919 191,758 95,879 287,638 143,819 431,458 215,729 647,188 323,594 161,797 485,392 242,696 121,348 60,674 30,337 91,012

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