3² × 7 × 19 × 43

Prime Factor Structure

Factorization String 3^2 × 7 × 19 × 43

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 91,520

Proper Divisor Sum 40,049

Digit Sum / Digital Root 18 (Root: 9)

Adjacent Primes #51461 ← → #51473

1 3 7 9 19 21 43 57 63 129 133 171 301 387 399 817 903 1,197 2,451 2,709 5,719 7,353 17,157 51,471

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

51,471 154,414 77,207 231,622 115,811 347,434 173,717 521,152 260,576 130,288 65,144 32,572 16,286 8,143 24,430 12,215 36,646 18,323 54,970 27,485 82,456 41,228 20,614 10,307 30,922 15,461 46,384 23,192 11,596 5,798 2,899 8,698 4,349 13,048 6,524 3,262 1,631 4,894 2,447 7,342 3,671 11,014 5,507 16,522 8,261 24,784 12,392 6,196 3,098 1,549 4,648 2,324 1,162 581 1,744 872 436 218 109 328

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