3 × 5² × 7 × 139

Prime Factor Structure

Factorization String 3 × 5^2 × 7 × 139

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 138,880

Proper Divisor Sum 65,905

Digit Sum / Digital Root 30 (Root: 3)

Adjacent Primes #72973 ← → #72977

1 3 5 7 15 21 25 35 75 105 139 175 417 525 695 973 2,085 2,919 3,475 4,865 10,425 14,595 24,325 72,975

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

72,975 218,926 109,463 328,390 164,195 492,586 246,293 738,880 369,440 184,720 92,360 46,180 23,090 11,545 34,636 17,318 8,659 25,978 12,989 38,968 19,484 9,742 4,871 14,614 7,307 21,922 10,961 32,884 16,442 8,221 24,664 12,332 6,166 3,083 9,250 4,625 13,876 6,938 3,469 10,408 5,204 2,602 1,301 3,904 1,952 976 488 244 122 61 184 92 46 23 70 35 106 53 160 80

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