217,224

2³ × 3² × 7 × 431

Prime Factor Structure

Factorization String 2^3 × 3^2 × 7 × 431

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Total Divisors 48

Divisor Sum (σ) 673,920

Proper Divisor Sum 456,696

Digit Sum / Digital Root 18 (Root: 9)

Adjacent Primes #217223 ← → #217229

1 2 3 4 6 7 8 9 12 14 18 21 24 28 36 42 56 63 72 84 126 168 252 431 504 862 1,293 1,724 2,586 3,017 3,448 3,879 5,172 6,034 7,758 9,051 10,344 12,068 15,516 18,102 24,136 27,153 31,032 36,204 54,306 72,408 108,612 217,224

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

217,224 108,612 54,306 27,153 81,460 40,730 20,365 61,096 30,548 15,274 7,637 22,912 11,456 5,728 2,864 1,432 716 358 179 538 269 808 404 202 101 304 152 76 38 19 58 29 88 44 22 11 34 17 52 26 13 40 20 10 5 16 8 4 2 1

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