3² × 5 × 13² × 17

Prime Factor Structure

Factorization String 3^2 × 5 × 13^2 × 17

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 36

Divisor Sum (σ) 256,932

Proper Divisor Sum 127,647

Digit Sum / Digital Root 27 (Root: 9)

Adjacent Primes #129281 ← → #129287

1 3 5 9 13 15 17 39 45 51 65 85 117 153 169 195 221 255 507 585 663 765 845 1,105 1,521 1,989 2,535 2,873 3,315 7,605 8,619 9,945 14,365 25,857 43,095 129,285

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

129,285 387,856 193,928 96,964 48,482 24,241 72,724 36,362 18,181 54,544 27,272 13,636 6,818 3,409 10,228 5,114 2,557 7,672 3,836 1,918 959 2,878 1,439 4,318 2,159 6,478 3,239 9,718 4,859 14,578 7,289 21,868 10,934 5,467 16,402 8,201 24,604 12,302 6,151 18,454 9,227 27,682 13,841 41,524 20,762 10,381 31,144 15,572 7,786 3,893 11,680 5,840 2,920 1,460 730 365 1,096 548 274 137

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