13² × 19 × 131

Prime Factor Structure

Factorization String 13^2 × 19 × 131

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 483,120

Proper Divisor Sum 62,479

Digit Sum / Digital Root 17 (Root: 8)

Adjacent Primes #420613 ← → #420671

1 13 19 131 169 247 1,703 2,489 3,211 22,139 32,357 420,641

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

420,641 1,261,924 630,962 315,481 946,444 473,222 236,611 709,834 354,917 1,064,752 532,376 266,188 133,094 66,547 199,642 99,821 299,464 149,732 74,866 37,433 112,300 56,150 28,075 84,226 42,113 126,340 63,170 31,585 94,756 47,378 23,689 71,068 35,534 17,767 53,302 26,651 79,954 39,977 119,932 59,966 29,983 89,950 44,975 134,926 67,463 202,390 101,195 303,586 151,793 455,380 227,690 113,845 341,536 170,768 85,384 42,692 21,346 10,673 32,020 16,010

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