3² × 263 × 643

Prime Factor Structure

Factorization String 3^2 × 263 × 643

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 2,210,208

Proper Divisor Sum 688,227

Digit Sum / Digital Root 27 (Root: 9)

Adjacent Primes #1521973 ← → #1521983

1 3 9 263 643 789 1,929 2,367 5,787 169,109 507,327 1,521,981

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

1,521,981 4,565,944 2,282,972 1,141,486 570,743 1,712,230 856,115 2,568,346 1,284,173 3,852,520 1,926,260 963,130 481,565 1,444,696 722,348 361,174 180,587 541,762 270,881 812,644 406,322 203,161 609,484 304,742 152,371 457,114 228,557 685,672 342,836 171,418 85,709 257,128 128,564 64,282 32,141 96,424 48,212 24,106 12,053 36,160 18,080 9,040 4,520 2,260 1,130 565 1,696 848 424 212 106 53 160 80 40 20 10 5 16 8

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