2³ × 7² × 109 × 509

Prime Factor Structure

Factorization String 2^3 × 7^2 × 109 × 509

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 48

Divisor Sum (σ) 47,965,500

Proper Divisor Sum 26,216,948

Digit Sum / Digital Root 34 (Root: 7)

Adjacent Primes #21748549 ← → #21748561

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

21,748,552 10,874,276 5,437,138 2,718,569 8,155,708 4,077,854 2,038,927 6,116,782 3,058,391 9,175,174 4,587,587 13,762,762 6,881,381 20,644,144 10,322,072 5,161,036 2,580,518 1,290,259 3,870,778 1,935,389 5,806,168 2,903,084 1,451,542 725,771 2,177,314 1,088,657 3,265,972 1,632,986 816,493 2,449,480 1,224,740 612,370 306,185 918,556 459,278 229,639 688,918 344,459 1,033,378 516,689 1,550,068 775,034 387,517 1,162,552 581,276 290,638 145,319 435,958 217,979 653,938 326,969 980,908 490,454 245,227 735,682 367,841 1,103,524 551,762 275,881 827,644

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