2 × 3² × 7 × 31 × 131

Prime Factor Structure

Factorization String 2 × 3^2 × 7 × 31 × 131

Distinct Prime Factors 5

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 48

Divisor Sum (σ) 1,317,888

Proper Divisor Sum 806,202

Digit Sum / Digital Root 27 (Root: 9)

Adjacent Primes #511669 ← → #511691

1 2 3 6 7 9 14 18 21 31 42 62 63 93 126 131 186 217 262 279 393 434 558 651 786 917 1,179 1,302 1,834 1,953 2,358 2,751 3,906 4,061 5,502 8,122 8,253 12,183 16,506 24,366 28,427 36,549 56,854 73,098 85,281 170,562 255,843 511,686

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

511,686 255,843 767,530 383,765 1,151,296 575,648 287,824 143,912 71,956 35,978 17,989 53,968 26,984 13,492 6,746 3,373 10,120 5,060 2,530 1,265 3,796 1,898 949 2,848 1,424 712 356 178 89 268 134 67 202 101 304 152 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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