2² × 3 × 131 × 139

Prime Factor Structure

Factorization String 2^2 × 3 × 131 × 139

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 517,440

Proper Divisor Sum 298,932

Digit Sum / Digital Root 24 (Root: 6)

Adjacent Primes #218479 ← → #218509

1 2 3 4 6 12 131 139 262 278 393 417 524 556 786 834 1,572 1,668 18,209 36,418 54,627 72,836 109,254 218,508

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

218,508 109,254 54,627 163,882 81,941 245,824 122,912 61,456 30,728 15,364 7,682 3,841 11,524 5,762 2,881 8,644 4,322 2,161 6,484 3,242 1,621 4,864 2,432 1,216 608 304 152 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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