2 × 13² × 641

Prime Factor Structure

Factorization String 2 × 13^2 × 641

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 352,458

Proper Divisor Sum 135,800

Digit Sum / Digital Root 28 (Root: 1)

Adjacent Primes #216653 ← → #216661

1 2 13 26 169 338 641 1,282 8,333 16,666 108,329 216,658

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

216,658 108,329 324,988 162,494 81,247 243,742 121,871 365,614 182,807 548,422 274,211 822,634 411,317 1,233,952 616,976 308,488 154,244 77,122 38,561 115,684 57,842 28,921 86,764 43,382 21,691 65,074 32,537 97,612 48,806 24,403 73,210 36,605 109,816 54,908 27,454 13,727 41,182 20,591 61,774 30,887 92,662 46,331 138,994 69,497 208,492 104,246 52,123 156,370 78,185 234,556 117,278 58,639 175,918 87,959 263,878 131,939 395,818 197,909 593,728 296,864

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