2 × 3² × 20639

Prime Factor Structure

Factorization String 2 × 3^2 × 20639

Distinct Prime Factors 3

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 804,960

Proper Divisor Sum 433,458

Digit Sum / Digital Root 18 (Root: 9)

Adjacent Primes #371491 ← → #371509

1 2 3 6 9 18 20,639 41,278 61,917 123,834 185,751 371,502

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

371,502 185,751 557,254 278,627 835,882 417,941 1,253,824 626,912 313,456 156,728 78,364 39,182 19,591 58,774 29,387 88,162 44,081 132,244 66,122 33,061 99,184 49,592 24,796 12,398 6,199 18,598 9,299 27,898 13,949 41,848 20,924 10,462 5,231 15,694 7,847 23,542 11,771 35,314 17,657 52,972 26,486 13,243 39,730 19,865 59,596 29,798 14,899 44,698 22,349 67,048 33,524 16,762 8,381 25,144 12,572 6,286 3,143 9,430 4,715 14,146

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