2 × 3² × 5 × 17 × 421

Prime Factor Structure

Factorization String 2 × 3^2 × 5 × 17 × 421

Distinct Prime Factors 5

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 48

Divisor Sum (σ) 1,777,464

Proper Divisor Sum 1,133,334

Digit Sum / Digital Root 18 (Root: 9)

Adjacent Primes #644129 ← → #644131

1 2 3 5 6 9 10 15 17 18 30 34 45 51 85 90 102 153 170 255 306 421 510 765 842 1,263 1,530 2,105 2,526 3,789 4,210 6,315 7,157 7,578 12,630 14,314 18,945 21,471 35,785 37,890 42,942 64,413 71,570 107,355 128,826 214,710 322,065 644,130

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

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