13² × 821

Prime Factor Structure

Factorization String 13^2 × 821

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 6

Divisor Sum (σ) 150,426

Proper Divisor Sum 11,677

Digit Sum / Digital Root 32 (Root: 5)

Adjacent Primes #138739 ← → #138763

1 13 169 821 10,673 138,749

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

138,749 416,248 208,124 104,062 52,031 156,094 78,047 234,142 117,071 351,214 175,607 526,822 263,411 790,234 395,117 1,185,352 592,676 296,338 148,169 444,508 222,254 111,127 333,382 166,691 500,074 250,037 750,112 375,056 187,528 93,764 46,882 23,441 70,324 35,162 17,581 52,744 26,372 13,186 6,593 19,780 9,890 4,945 14,836 7,418 3,709 11,128 5,564 2,782 1,391 4,174 2,087 6,262 3,131 9,394 4,697 14,092 7,046 3,523 10,570 5,285

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