2 × 3² × 21751

Prime Factor Structure

Factorization String 2 × 3^2 × 21751

Distinct Prime Factors 3

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 848,328

Proper Divisor Sum 456,810

Digit Sum / Digital Root 27 (Root: 9)

Adjacent Primes #391487 ← → #391519

1 2 3 6 9 18 21,751 43,502 65,253 130,506 195,759 391,518

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

391,518 195,759 587,278 293,639 880,918 440,459 1,321,378 660,689 1,982,068 991,034 495,517 1,486,552 743,276 371,638 185,819 557,458 278,729 836,188 418,094 209,047 627,142 313,571 940,714 470,357 1,411,072 705,536 352,768 176,384 88,192 44,096 22,048 11,024 5,512 2,756 1,378 689 2,068 1,034 517 1,552 776 388 194 97 292 146 73 220 110 55 166 83 250 125 376 188 94 47 142 71

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