3 × 7 × 613

Prime Factor Structure

Factorization String 3 × 7 × 613

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 19,648

Proper Divisor Sum 6,775

Digit Sum / Digital Root 21 (Root: 3)

Adjacent Primes #12853 ← → #12889

1 3 7 21 613 1,839 4,291 12,873

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

12,873 38,620 19,310 9,655 28,966 14,483 43,450 21,725 65,176 32,588 16,294 8,147 24,442 12,221 36,664 18,332 9,166 4,583 13,750 6,875 20,626 10,313 30,940 15,470 7,735 23,206 11,603 34,810 17,405 52,216 26,108 13,054 6,527 19,582 9,791 29,374 14,687 44,062 22,031 66,094 33,047 99,142 49,571 148,714 74,357 223,072 111,536 55,768 27,884 13,942 6,971 20,914 10,457 31,372 15,686 7,843 23,530 11,765 35,296 17,648

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