13 × 19801

Prime Factor Structure

Factorization String 13 × 19801

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 277,228

Proper Divisor Sum 19,815

Digit Sum / Digital Root 22 (Root: 4)

Adjacent Primes #257407 ← → #257437

1 13 19,801 257,413

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

257,413 772,240 386,120 193,060 96,530 48,265 144,796 72,398 36,199 108,598 54,299 162,898 81,449 244,348 122,174 61,087 183,262 91,631 274,894 137,447 412,342 206,171 618,514 309,257 927,772 463,886 231,943 695,830 347,915 1,043,746 521,873 1,565,620 782,810 391,405 1,174,216 587,108 293,554 146,777 440,332 220,166 110,083 330,250 165,125 495,376 247,688 123,844 61,922 30,961 92,884 46,442 23,221 69,664 34,832 17,416 8,708 4,354 2,177 6,532 3,266 1,633

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