3 × 5 × 53 × 811

Prime Factor Structure

Factorization String 3 × 5 × 53 × 811

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 1,052,352

Proper Divisor Sum 407,607

Digit Sum / Digital Root 30 (Root: 3)

Adjacent Primes #644731 ← → #644747

1 3 5 15 53 159 265 795 811 2,433 4,055 12,165 42,983 128,949 214,915 644,745

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

644,745 1,934,236 967,118 483,559 1,450,678 725,339 2,176,018 1,088,009 3,264,028 1,632,014 816,007 2,448,022 1,224,011 3,672,034 1,836,017 5,508,052 2,754,026 1,377,013 4,131,040 2,065,520 1,032,760 516,380 258,190 129,095 387,286 193,643 580,930 290,465 871,396 435,698 217,849 653,548 326,774 163,387 490,162 245,081 735,244 367,622 183,811 551,434 275,717 827,152 413,576 206,788 103,394 51,697 155,092 77,546 38,773 116,320 58,160 29,080 14,540 7,270 3,635 10,906 5,453 16,360 8,180 4,090

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