2 × 3² × 21647

Prime Factor Structure

Factorization String 2 × 3^2 × 21647

Distinct Prime Factors 3

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 844,272

Proper Divisor Sum 454,626

Digit Sum / Digital Root 36 (Root: 9)

Adjacent Primes #389629 ← → #389651

1 2 3 6 9 18 21,647 43,294 64,941 129,882 194,823 389,646

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

389,646 194,823 584,470 292,235 876,706 438,353 1,315,060 657,530 328,765 986,296 493,148 246,574 123,287 369,862 184,931 554,794 277,397 832,192 416,096 208,048 104,024 52,012 26,006 13,003 39,010 19,505 58,516 29,258 14,629 43,888 21,944 10,972 5,486 2,743 8,230 4,115 12,346 6,173 18,520 9,260 4,630 2,315 6,946 3,473 10,420 5,210 2,605 7,816 3,908 1,954 977 2,932 1,466 733 2,200 1,100 550 275 826 413

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