2³ × 3 × 5 × 13 × 139

Prime Factor Structure

Factorization String 2^3 × 3 × 5 × 13 × 139

Distinct Prime Factors 5

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 64

Divisor Sum (σ) 705,600

Proper Divisor Sum 488,760

Digit Sum / Digital Root 21 (Root: 3)

Adjacent Primes #216829 ← → #216841

1 2 3 4 5 6 8 10 12 13 15 20 24 26 30 39 40 52 60 65 78 104 120 130 139 156 195 260 278 312 390 417 520 556 695 780 834 1,112 1,390 1,560 1,668 1,807 2,085 2,780 3,336 3,614 4,170 5,421 5,560 7,228 8,340 9,035 10,842 14,456 16,680 18,070 21,684 27,105 36,140 43,368

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

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