3 × 7 × 53 × 131

Prime Factor Structure

Factorization String 3 × 7 × 53 × 131

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 228,096

Proper Divisor Sum 82,293

Digit Sum / Digital Root 21 (Root: 3)

Adjacent Primes #145799 ← → #145807

1 3 7 21 53 131 159 371 393 917 1,113 2,751 6,943 20,829 48,601 145,803

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

145,803 437,410 218,705 656,116 328,058 164,029 492,088 246,044 123,022 61,511 184,534 92,267 276,802 138,401 415,204 207,602 103,801 311,404 155,702 77,851 233,554 116,777 350,332 175,166 87,583 262,750 131,375 394,126 197,063 591,190 295,595 886,786 443,393 1,330,180 665,090 332,545 997,636 498,818 249,409 748,228 374,114 187,057 561,172 280,586 140,293 420,880 210,440 105,220 52,610 26,305 78,916 39,458 19,729 59,188 29,594 14,797 44,392 22,196 11,098 5,549

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