13,638,872

2³ × 13 × 131143

Prime Factor Structure

Factorization String 2^3 × 13 × 131143

Distinct Prime Factors 3

Square Status No

Abundance Measure Abundant

Total Divisors 16

Divisor Sum (σ) 27,540,240

Proper Divisor Sum 13,901,368

Digit Sum / Digital Root 38 (Root: 2)

Adjacent Primes #13638817 ← → #13638881

1 2 4 8 13 26 52 104 131,143 262,286 524,572 1,049,144 1,704,859 3,409,718 6,819,436 13,638,872

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

13,638,872 6,819,436 3,409,718 1,704,859 5,114,578 2,557,289 7,671,868 3,835,934 1,917,967 5,753,902 2,876,951 8,630,854 4,315,427 12,946,282 6,473,141 19,419,424 9,709,712 4,854,856 2,427,428 1,213,714 606,857 1,820,572 910,286 455,143 1,365,430 682,715 2,048,146 1,024,073 3,072,220 1,536,110 768,055 2,304,166 1,152,083 3,456,250 1,728,125 5,184,376 2,592,188 1,296,094 648,047 1,944,142 972,071 2,916,214 1,458,107 4,374,322 2,187,161 6,561,484 3,280,742 1,640,371 4,921,114 2,460,557 7,381,672 3,690,836 1,845,418 922,709 2,768,128 1,384,064 692,032 346,016 173,008 86,504

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