2 × 3 × 109 × 643

Prime Factor Structure

Factorization String 2 × 3 × 109 × 643

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 850,080

Proper Divisor Sum 429,558

Digit Sum / Digital Root 15 (Root: 6)

Adjacent Primes #420521 ← → #420551

1 2 3 6 109 218 327 643 654 1,286 1,929 3,858 70,087 140,174 210,261 420,522

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

420,522 210,261 630,784 315,392 157,696 78,848 39,424 19,712 9,856 4,928 2,464 1,232 616 308 154 77 232 116 58 29 88 44 22 11 34 17 52 26 13 40 20 10 5 16 8 4 2 1

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