2² × 5291563

Prime Factor Structure

Factorization String 2^2 × 5291563

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 6

Divisor Sum (σ) 37,040,948

Proper Divisor Sum 15,874,696

Digit Sum / Digital Root 25 (Root: 7)

Adjacent Primes #21166217 ← → #21166253

1 2 4 5,291,563 10,583,126 21,166,252

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

21,166,252 10,583,126 5,291,563 15,874,690 7,937,345 23,812,036 11,906,018 5,953,009 17,859,028 8,929,514 4,464,757 13,394,272 6,697,136 3,348,568 1,674,284 837,142 418,571 1,255,714 627,857 1,883,572 941,786 470,893 1,412,680 706,340 353,170 176,585 529,756 264,878 132,439 397,318 198,659 595,978 297,989 893,968 446,984 223,492 111,746 55,873 167,620 83,810 41,905 125,716 62,858 31,429 94,288 47,144 23,572 11,786 5,893 17,680 8,840 4,420 2,210 1,105 3,316 1,658 829 2,488 1,244 622

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