5 × 19² × 71

Prime Factor Structure

Factorization String 5 × 19^2 × 71

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 164,592

Proper Divisor Sum 36,437

Digit Sum / Digital Root 22 (Root: 4)

Adjacent Primes #128153 ← → #128159

1 5 19 71 95 355 361 1,349 1,805 6,745 25,631 128,155

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

128,155 384,466 192,233 576,700 288,350 144,175 432,526 216,263 648,790 324,395 973,186 486,593 1,459,780 729,890 364,945 1,094,836 547,418 273,709 821,128 410,564 205,282 102,641 307,924 153,962 76,981 230,944 115,472 57,736 28,868 14,434 7,217 21,652 10,826 5,413 16,240 8,120 4,060 2,030 1,015 3,046 1,523 4,570 2,285 6,856 3,428 1,714 857 2,572 1,286 643 1,930 965 2,896 1,448 724 362 181 544 272 136

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