2² × 5 × 41 × 25639

Prime Factor Structure

Factorization String 2^2 × 5 × 41 × 25639

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 45,228,960

Proper Divisor Sum 24,204,980

Digit Sum / Digital Root 25 (Root: 7)

Adjacent Primes #21023971 ← → #21024067

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

21,023,980 10,511,990 5,255,995 15,767,986 7,883,993 23,651,980 11,825,990 5,912,995 17,738,986 8,869,493 26,608,480 13,304,240 6,652,120 3,326,060 1,663,030 831,515 2,494,546 1,247,273 3,741,820 1,870,910 935,455 2,806,366 1,403,183 4,209,550 2,104,775 6,314,326 3,157,163 9,471,490 4,735,745 14,207,236 7,103,618 3,551,809 10,655,428 5,327,714 2,663,857 7,991,572 3,995,786 1,997,893 5,993,680 2,996,840 1,498,420 749,210 374,605 1,123,816 561,908 280,954 140,477 421,432 210,716 105,358 52,679 158,038 79,019 237,058 118,529 355,588 177,794 88,897 266,692 133,346

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