67 × 21991

Prime Factor Structure

Factorization String 67 × 21991

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 1,495,456

Proper Divisor Sum 22,059

Digit Sum / Digital Root 34 (Root: 7)

Adjacent Primes #1473391 ← → #1473419

1 67 21,991 1,473,397

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

1,473,397 4,420,192 2,210,096 1,105,048 552,524 276,262 138,131 414,394 207,197 621,592 310,796 155,398 77,699 233,098 116,549 349,648 174,824 87,412 43,706 21,853 65,560 32,780 16,390 8,195 24,586 12,293 36,880 18,440 9,220 4,610 2,305 6,916 3,458 1,729 5,188 2,594 1,297 3,892 1,946 973 2,920 1,460 730 365 1,096 548 274 137 412 206 103 310 155 466 233 700 350 175 526 263

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