2 × 3² × 7 × 37 × 139

Prime Factor Structure

Factorization String 2 × 3^2 × 7 × 37 × 139

Distinct Prime Factors 5

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 48

Divisor Sum (σ) 1,659,840

Proper Divisor Sum 1,011,822

Digit Sum / Digital Root 27 (Root: 9)

Adjacent Primes #648007 ← → #648019

1 2 3 6 7 9 14 18 21 37 42 63 74 111 126 139 222 259 278 333 417 518 666 777 834 973 1,251 1,554 1,946 2,331 2,502 2,919 4,662 5,143 5,838 8,757 10,286 15,429 17,514 30,858 36,001 46,287 72,002 92,574 108,003 216,006 324,009 648,018

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

648,018 324,009 972,028 486,014 243,007 729,022 364,511 1,093,534 546,767 1,640,302 820,151 2,460,454 1,230,227 3,690,682 1,845,341 5,536,024 2,768,012 1,384,006 692,003 2,076,010 1,038,005 3,114,016 1,557,008 778,504 389,252 194,626 97,313 291,940 145,970 72,985 218,956 109,478 54,739 164,218 82,109 246,328 123,164 61,582 30,791 92,374 46,187 138,562 69,281 207,844 103,922 51,961 155,884 77,942 38,971 116,914 58,457 175,372 87,686 43,843 131,530 65,765 197,296 98,648 49,324 24,662

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