3 × 7² × 3823

Prime Factor Structure

Factorization String 3 × 7^2 × 3823

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 871,872

Proper Divisor Sum 309,891

Digit Sum / Digital Root 30 (Root: 3)

Adjacent Primes #561973 ← → #561983

1 3 7 21 49 147 3,823 11,469 26,761 80,283 187,327 561,981

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

561,981 1,685,944 842,972 421,486 210,743 632,230 316,115 948,346 474,173 1,422,520 711,260 355,630 177,815 533,446 266,723 800,170 400,085 1,200,256 600,128 300,064 150,032 75,016 37,508 18,754 9,377 28,132 14,066 7,033 21,100 10,550 5,275 15,826 7,913 23,740 11,870 5,935 17,806 8,903 26,710 13,355 40,066 20,033 60,100 30,050 15,025 45,076 22,538 11,269 33,808 16,904 8,452 4,226 2,113 6,340 3,170 1,585 4,756 2,378 1,189 3,568

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