3 × 7 × 31 × 397

Prime Factor Structure

Factorization String 3 × 7 × 31 × 397

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 407,552

Proper Divisor Sum 149,105

Digit Sum / Digital Root 30 (Root: 3)

Adjacent Primes #258443 ← → #258449

1 3 7 21 31 93 217 397 651 1,191 2,779 8,337 12,307 36,921 86,149 258,447

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

258,447 775,342 387,671 1,163,014 581,507 1,744,522 872,261 2,616,784 1,308,392 654,196 327,098 163,549 490,648 245,324 122,662 61,331 183,994 91,997 275,992 137,996 68,998 34,499 103,498 51,749 155,248 77,624 38,812 19,406 9,703 29,110 14,555 43,666 21,833 65,500 32,750 16,375 49,126 24,563 73,690 36,845 110,536 55,268 27,634 13,817 41,452 20,726 10,363 31,090 15,545 46,636 23,318 11,659 34,978 17,489 52,468 26,234 13,117 39,352 19,676 9,838

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