3 × 5 × 7² × 17²

Prime Factor Structure

Factorization String 3 × 5 × 7^2 × 17^2

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 36

Divisor Sum (σ) 419,976

Proper Divisor Sum 207,561

Digit Sum / Digital Root 15 (Root: 6)

Adjacent Primes #212411 ← → #212419

1 3 5 7 15 17 21 35 49 51 85 105 119 147 245 255 289 357 595 735 833 867 1,445 1,785 2,023 2,499 4,165 4,335 6,069 10,115 12,495 14,161 30,345 42,483 70,805 212,415

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

212,415 637,246 318,623 955,870 477,935 1,433,806 716,903 2,150,710 1,075,355 3,226,066 1,613,033 4,839,100 2,419,550 1,209,775 3,629,326 1,814,663 5,443,990 2,721,995 8,165,986 4,082,993 12,248,980 6,124,490 3,062,245 9,186,736 4,593,368 2,296,684 1,148,342 574,171 1,722,514 861,257 2,583,772 1,291,886 645,943 1,937,830 968,915 2,906,746 1,453,373 4,360,120 2,180,060 1,090,030 545,015 1,635,046 817,523 2,452,570 1,226,285 3,678,856 1,839,428 919,714 459,857 1,379,572 689,786 344,893 1,034,680 517,340 258,670 129,335 388,006 194,003 582,010 291,005

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