2 × 3² × 19 × 521

Prime Factor Structure

Factorization String 2 × 3^2 × 19 × 521

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 407,160

Proper Divisor Sum 228,978

Digit Sum / Digital Root 27 (Root: 9)

Adjacent Primes #178169 ← → #178183

1 2 3 6 9 18 19 38 57 114 171 342 521 1,042 1,563 3,126 4,689 9,378 9,899 19,798 29,697 59,394 89,091 178,182

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

178,182 89,091 267,274 133,637 400,912 200,456 100,228 50,114 25,057 75,172 37,586 18,793 56,380 28,190 14,095 42,286 21,143 63,430 31,715 95,146 47,573 142,720 71,360 35,680 17,840 8,920 4,460 2,230 1,115 3,346 1,673 5,020 2,510 1,255 3,766 1,883 5,650 2,825 8,476 4,238 2,119 6,358 3,179 9,538 4,769 14,308 7,154 3,577 10,732 5,366 2,683 8,050 4,025 12,076 6,038 3,019 9,058 4,529 13,588 6,794

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