5 × 13 × 17 × 197

Prime Factor Structure

Factorization String 5 × 13 × 17 × 197

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 299,376

Proper Divisor Sum 81,691

Digit Sum / Digital Root 29 (Root: 2)

Adjacent Primes #217681 ← → #217687

1 5 13 17 65 85 197 221 985 1,105 2,561 3,349 12,805 16,745 43,537 217,685

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

217,685 653,056 326,528 163,264 81,632 40,816 20,408 10,204 5,102 2,551 7,654 3,827 11,482 5,741 17,224 8,612 4,306 2,153 6,460 3,230 1,615 4,846 2,423 7,270 3,635 10,906 5,453 16,360 8,180 4,090 2,045 6,136 3,068 1,534 767 2,302 1,151 3,454 1,727 5,182 2,591 7,774 3,887 11,662 5,831 17,494 8,747 26,242 13,121 39,364 19,682 9,841 29,524 14,762 7,381 22,144 11,072 5,536 2,768 1,384

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