13² × 47 × 53

Prime Factor Structure

Factorization String 13^2 × 47 × 53

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 474,336

Proper Divisor Sum 53,357

Digit Sum / Digital Root 31 (Root: 4)

Adjacent Primes #420977 ← → #420997

1 13 47 53 169 611 689 2,491 7,943 8,957 32,383 420,979

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

420,979 1,262,938 631,469 1,894,408 947,204 473,602 236,801 710,404 355,202 177,601 532,804 266,402 133,201 399,604 199,802 99,901 299,704 149,852 74,926 37,463 112,390 56,195 168,586 84,293 252,880 126,440 63,220 31,610 15,805 47,416 23,708 11,854 5,927 17,782 8,891 26,674 13,337 40,012 20,006 10,003 30,010 15,005 45,016 22,508 11,254 5,627 16,882 8,441 25,324 12,662 6,331 18,994 9,497 28,492 14,246 7,123 21,370 10,685 32,056 16,028

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