2² × 5 × 7 × 353 × 433

Prime Factor Structure

Factorization String 2^2 × 5 × 7 × 353 × 433

Distinct Prime Factors 5

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 48

Divisor Sum (σ) 51,621,696

Proper Divisor Sum 30,222,836

Digit Sum / Digital Root 37 (Root: 1)

Adjacent Primes #21398849 ← → #21398873

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

21,398,860 10,699,430 5,349,715 16,049,146 8,024,573 24,073,720 12,036,860 6,018,430 3,009,215 9,027,646 4,513,823 13,541,470 6,770,735 20,312,206 10,156,103 30,468,310 15,234,155 45,702,466 22,851,233 68,553,700 34,276,850 17,138,425 51,415,276 25,707,638 12,853,819 38,561,458 19,280,729 57,842,188 28,921,094 14,460,547 43,381,642 21,690,821 65,072,464 32,536,232 16,268,116 8,134,058 4,067,029 12,201,088 6,100,544 3,050,272 1,525,136 762,568 381,284 190,642 95,321 285,964 142,982 71,491 214,474 107,237 321,712 160,856 80,428 40,214 20,107 60,322 30,161 90,484 45,242 22,621

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