2 × 3² × 5 × 7 × 139 × 251

Prime Factor Structure

Factorization String 2 × 3^2 × 5 × 7 × 139 × 251

Distinct Prime Factors 6

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 96

Divisor Sum (σ) 66,044,160

Proper Divisor Sum 44,064,090

Digit Sum / Digital Root 27 (Root: 9)

Adjacent Primes #21980053 ← → #21980117

1 2 3 5 6 7 9 10 14 15 18 21 30 35 42 45 63 70 90 105 126 139 210 251 278 315 417 502 630 695 753 834 973 1,251 1,255 1,390 1,506 1,757 1,946 2,085 2,259 2,502 2,510 2,919 3,514 3,765 4,170 4,518 4,865 5,271 5,838 6,255 7,530 8,757 8,785 9,730 10,542 11,295 12,510 14,595

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

21,980,070 10,990,035 32,970,106 16,485,053 49,455,160 24,727,580 12,363,790 6,181,895 18,545,686 9,272,843 27,818,530 13,909,265 41,727,796 20,863,898 10,431,949 31,295,848 15,647,924 7,823,962 3,911,981 11,735,944 5,867,972 2,933,986 1,466,993 4,400,980 2,200,490 1,100,245 3,300,736 1,650,368 825,184 412,592 206,296 103,148 51,574 25,787 77,362 38,681 116,044 58,022 29,011 87,034 43,517 130,552 65,276 32,638 16,319 48,958 24,479 73,438 36,719 110,158 55,079 165,238 82,619 247,858 123,929 371,788 185,894 92,947 278,842 139,421

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