3 × 13 × 19 × 547

Prime Factor Structure

Factorization String 3 × 13 × 19 × 547

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 613,760

Proper Divisor Sum 208,433

Digit Sum / Digital Root 21 (Root: 3)

Adjacent Primes #405323 ← → #405341

1 3 13 19 39 57 247 547 741 1,641 7,111 10,393 21,333 31,179 135,109 405,327

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

405,327 1,215,982 607,991 1,823,974 911,987 2,735,962 1,367,981 4,103,944 2,051,972 1,025,986 512,993 1,538,980 769,490 384,745 1,154,236 577,118 288,559 865,678 432,839 1,298,518 649,259 1,947,778 973,889 2,921,668 1,460,834 730,417 2,191,252 1,095,626 547,813 1,643,440 821,720 410,860 205,430 102,715 308,146 154,073 462,220 231,110 115,555 346,666 173,333 520,000 260,000 130,000 65,000 32,500 16,250 8,125 24,376 12,188 6,094 3,047 9,142 4,571 13,714 6,857 20,572 10,286 5,143 15,430

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