3² × 7² × 2203

Prime Factor Structure

Factorization String 3^2 × 7^2 × 2203

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 18

Divisor Sum (σ) 1,633,164

Proper Divisor Sum 661,641

Digit Sum / Digital Root 27 (Root: 9)

Adjacent Primes #971521 ← → #971549

1 3 7 9 21 49 63 147 441 2,203 6,609 15,421 19,827 46,263 107,947 138,789 323,841 971,523

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

971,523 2,914,570 1,457,285 4,371,856 2,185,928 1,092,964 546,482 273,241 819,724 409,862 204,931 614,794 307,397 922,192 461,096 230,548 115,274 57,637 172,912 86,456 43,228 21,614 10,807 32,422 16,211 48,634 24,317 72,952 36,476 18,238 9,119 27,358 13,679 41,038 20,519 61,558 30,779 92,338 46,169 138,508 69,254 34,627 103,882 51,941 155,824 77,912 38,956 19,478 9,739 29,218 14,609 43,828 21,914 10,957 32,872 16,436 8,218 4,109 12,328 6,164

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