3² × 7 × 17 × 19

Prime Factor Structure

Factorization String 3^2 × 7 × 17 × 19

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 37,440

Proper Divisor Sum 17,091

Digit Sum / Digital Root 18 (Root: 9)

Adjacent Primes #20347 ← → #20353

1 3 7 9 17 19 21 51 57 63 119 133 153 171 323 357 399 969 1,071 1,197 2,261 2,907 6,783 20,349

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

20,349 61,048 30,524 15,262 7,631 22,894 11,447 34,342 17,171 51,514 25,757 77,272 38,636 19,318 9,659 28,978 14,489 43,468 21,734 10,867 32,602 16,301 48,904 24,452 12,226 6,113 18,340 9,170 4,585 13,756 6,878 3,439 10,318 5,159 15,478 7,739 23,218 11,609 34,828 17,414 8,707 26,122 13,061 39,184 19,592 9,796 4,898 2,449 7,348 3,674 1,837 5,512 2,756 1,378 689 2,068 1,034 517 1,552 776

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