2 × 5 × 21787

Prime Factor Structure

Factorization String 2 × 5 × 21787

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 392,184

Proper Divisor Sum 174,314

Digit Sum / Digital Root 25 (Root: 7)

Adjacent Primes #217859 ← → #217901

1 2 5 10 21,787 43,574 108,935 217,870

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

217,870 108,935 326,806 163,403 490,210 245,105 735,316 367,658 183,829 551,488 275,744 137,872 68,936 34,468 17,234 8,617 25,852 12,926 6,463 19,390 9,695 29,086 14,543 43,630 21,815 65,446 32,723 98,170 49,085 147,256 73,628 36,814 18,407 55,222 27,611 82,834 41,417 124,252 62,126 31,063 93,190 46,595 139,786 69,893 209,680 104,840 52,420 26,210 13,105 39,316 19,658 9,829 29,488 14,744 7,372 3,686 1,843 5,530 2,765 8,296

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