3 × 13 × 31 × 521

Prime Factor Structure

Factorization String 3 × 13 × 31 × 521

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 935,424

Proper Divisor Sum 305,535

Digit Sum / Digital Root 42 (Root: 6)

Adjacent Primes #629873 ← → #629891

1 3 13 31 39 93 403 521 1,209 1,563 6,773 16,151 20,319 48,453 209,963 629,889

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

629,889 1,889,668 944,834 472,417 1,417,252 708,626 354,313 1,062,940 531,470 265,735 797,206 398,603 1,195,810 597,905 1,793,716 896,858 448,429 1,345,288 672,644 336,322 168,161 504,484 252,242 126,121 378,364 189,182 94,591 283,774 141,887 425,662 212,831 638,494 319,247 957,742 478,871 1,436,614 718,307 2,154,922 1,077,461 3,232,384 1,616,192 808,096 404,048 202,024 101,012 50,506 25,253 75,760 37,880 18,940 9,470 4,735 14,206 7,103 21,310 10,655 31,966 15,983 47,950 23,975

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