212,508

2² × 3² × 5903

Prime Factor Structure

Factorization String 2^2 × 3^2 × 5903

Distinct Prime Factors 3

Square Status No

Abundance Measure Abundant

Total Divisors 18

Divisor Sum (σ) 537,264

Proper Divisor Sum 324,756

Digit Sum / Digital Root 18 (Root: 9)

Adjacent Primes #212507 ← → #212557

1 2 3 4 6 9 12 18 36 5,903 11,806 17,709 23,612 35,418 53,127 70,836 106,254 212,508

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

212,508 106,254 53,127 159,382 79,691 239,074 119,537 358,612 179,306 89,653 268,960 134,480 67,240 33,620 16,810 8,405 25,216 12,608 6,304 3,152 1,576 788 394 197 592 296 148 74 37 112 56 28 14 7 22 11 34 17 52 26 13 40 20 10 5 16 8 4 2 1

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