2 × 3² × 7 × 1021

Prime Factor Structure

Factorization String 2 × 3^2 × 7 × 1021

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 318,864

Proper Divisor Sum 190,218

Digit Sum / Digital Root 27 (Root: 9)

Adjacent Primes #128629 ← → #128657

1 2 3 6 7 9 14 18 21 42 63 126 1,021 2,042 3,063 6,126 7,147 9,189 14,294 18,378 21,441 42,882 64,323 128,646

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

128,646 64,323 192,970 96,485 289,456 144,728 72,364 36,182 18,091 54,274 27,137 81,412 40,706 20,353 61,060 30,530 15,265 45,796 22,898 11,449 34,348 17,174 8,587 25,762 12,881 38,644 19,322 9,661 28,984 14,492 7,246 3,623 10,870 5,435 16,306 8,153 24,460 12,230 6,115 18,346 9,173 27,520 13,760 6,880 3,440 1,720 860 430 215 646 323 970 485 1,456 728 364 182 91 274 137

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