2 × 3² × 21871

Prime Factor Structure

Factorization String 2 × 3^2 × 21871

Distinct Prime Factors 3

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 853,008

Proper Divisor Sum 459,330

Digit Sum / Digital Root 36 (Root: 9)

Adjacent Primes #393677 ← → #393683

1 2 3 6 9 18 21,871 43,742 65,613 131,226 196,839 393,678

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

393,678 196,839 590,518 295,259 885,778 442,889 1,328,668 664,334 332,167 996,502 498,251 1,494,754 747,377 2,242,132 1,121,066 560,533 1,681,600 840,800 420,400 210,200 105,100 52,550 26,275 78,826 39,413 118,240 59,120 29,560 14,780 7,390 3,695 11,086 5,543 16,630 8,315 24,946 12,473 37,420 18,710 9,355 28,066 14,033 42,100 21,050 10,525 31,576 15,788 7,894 3,947 11,842 5,921 17,764 8,882 4,441 13,324 6,662 3,331 9,994 4,997 14,992

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