217,746

2 × 3² × 12097

Prime Factor Structure

Factorization String 2 × 3^2 × 12097

Distinct Prime Factors 3

Square Status No

Abundance Measure Abundant

Total Divisors 12

Divisor Sum (σ) 471,822

Proper Divisor Sum 254,076

Digit Sum / Digital Root 27 (Root: 9)

Adjacent Primes #217739 ← → #217747

1 2 3 6 9 18 12,097 24,194 36,291 72,582 108,873 217,746

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

217,746 108,873 326,620 163,310 81,655 244,966 122,483 367,450 183,725 551,176 275,588 137,794 68,897 206,692 103,346 51,673 155,020 77,510 38,755 116,266 58,133 174,400 87,200 43,600 21,800 10,900 5,450 2,725 8,176 4,088 2,044 1,022 511 1,534 767 2,302 1,151 3,454 1,727 5,182 2,591 7,774 3,887 11,662 5,831 17,494 8,747 26,242 13,121 39,364 19,682 9,841 29,524 14,762 7,381 22,144 11,072 5,536 2,768 1,384

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