13 × 17 × 19 × 41

Prime Factor Structure

Factorization String 13 × 17 × 19 × 41

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 211,680

Proper Divisor Sum 39,521

Digit Sum / Digital Root 25 (Root: 7)

Adjacent Primes #172157 ← → #172169

1 13 17 19 41 221 247 323 533 697 779 4,199 9,061 10,127 13,243 172,159

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

172,159 516,478 258,239 774,718 387,359 1,162,078 581,039 1,743,118 871,559 2,614,678 1,307,339 3,922,018 1,961,009 5,883,028 2,941,514 1,470,757 4,412,272 2,206,136 1,103,068 551,534 275,767 827,302 413,651 1,240,954 620,477 1,861,432 930,716 465,358 232,679 698,038 349,019 1,047,058 523,529 1,570,588 785,294 392,647 1,177,942 588,971 1,766,914 883,457 2,650,372 1,325,186 662,593 1,987,780 993,890 496,945 1,490,836 745,418 372,709 1,118,128 559,064 279,532 139,766 69,883 209,650 104,825 314,476 157,238 78,619 235,858

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