2² × 13 × 410857

Prime Factor Structure

Factorization String 2^2 × 13 × 410857

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 40,264,084

Proper Divisor Sum 18,899,520

Digit Sum / Digital Root 31 (Root: 4)

Adjacent Primes #21364547 ← → #21364591

1 2 4 13 26 52 410,857 821,714 1,643,428 5,341,141 10,682,282 21,364,564

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

21,364,564 10,682,282 5,341,141 16,023,424 8,011,712 4,005,856 2,002,928 1,001,464 500,732 250,366 125,183 375,550 187,775 563,326 281,663 844,990 422,495 1,267,486 633,743 1,901,230 950,615 2,851,846 1,425,923 4,277,770 2,138,885 6,416,656 3,208,328 1,604,164 802,082 401,041 1,203,124 601,562 300,781 902,344 451,172 225,586 112,793 338,380 169,190 84,595 253,786 126,893 380,680 190,340 95,170 47,585 142,756 71,378 35,689 107,068 53,534 26,767 80,302 40,151 120,454 60,227 180,682 90,341 271,024 135,512

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