13 × 1217

Prime Factor Structure

Factorization String 13 × 1217

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 17,052

Proper Divisor Sum 1,231

Digit Sum / Digital Root 17 (Root: 8)

Adjacent Primes #15817 ← → #15823

1 13 1,217 15,821

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

15,821 47,464 23,732 11,866 5,933 17,800 8,900 4,450 2,225 6,676 3,338 1,669 5,008 2,504 1,252 626 313 940 470 235 706 353 1,060 530 265 796 398 199 598 299 898 449 1,348 674 337 1,012 506 253 760 380 190 95 286 143 430 215 646 323 970 485 1,456 728 364 182 91 274 137 412 206 103

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