3² × 7² × 13 × 113

Prime Factor Structure

Factorization String 3^2 × 7^2 × 13 × 113

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 36

Divisor Sum (σ) 1,182,636

Proper Divisor Sum 534,807

Digit Sum / Digital Root 36 (Root: 9)

Adjacent Primes #647821 ← → #647837

1 3 7 9 13 21 39 49 63 91 113 117 147 273 339 441 637 791 819 1,017 1,469 1,911 2,373 4,407 5,537 5,733 7,119 10,283 13,221 16,611 30,849 49,833 71,981 92,547 215,943 647,829

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

647,829 1,943,488 971,744 485,872 242,936 121,468 60,734 30,367 91,102 45,551 136,654 68,327 204,982 102,491 307,474 153,737 461,212 230,606 115,303 345,910 172,955 518,866 259,433 778,300 389,150 194,575 583,726 291,863 875,590 437,795 1,313,386 656,693 1,970,080 985,040 492,520 246,260 123,130 61,565 184,696 92,348 46,174 23,087 69,262 34,631 103,894 51,947 155,842 77,921 233,764 116,882 58,441 175,324 87,662 43,831 131,494 65,747 197,242 98,621 295,864 147,932

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