1,990,231

19 × 31² × 109

Prime Factor Structure

Factorization String 19 × 31^2 × 109

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Total Divisors 12

Divisor Sum (σ) 2,184,600

Proper Divisor Sum 194,369

Digit Sum / Digital Root 25 (Root: 7)

Adjacent Primes #1990229 ← → #1990237

1 19 31 109 589 961 2,071 3,379 18,259 64,201 104,749 1,990,231

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

1,990,231 5,970,694 2,985,347 8,956,042 4,478,021 13,434,064 6,717,032 3,358,516 1,679,258 839,629 2,518,888 1,259,444 629,722 314,861 944,584 472,292 236,146 118,073 354,220 177,110 88,555 265,666 132,833 398,500 199,250 99,625 298,876 149,438 74,719 224,158 112,079 336,238 168,119 504,358 252,179 756,538 378,269 1,134,808 567,404 283,702 141,851 425,554 212,777 638,332 319,166 159,583 478,750 239,375 718,126 359,063 1,077,190 538,595 1,615,786 807,893 2,423,680 1,211,840 605,920 302,960 151,480 75,740

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