199,188

2² × 3² × 11 × 503

Prime Factor Structure

Factorization String 2^2 × 3^2 × 11 × 503

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Total Divisors 36

Divisor Sum (σ) 550,368

Proper Divisor Sum 351,180

Digit Sum / Digital Root 36 (Root: 9)

Adjacent Primes #199181 ← → #199193

1 2 3 4 6 9 11 12 18 22 33 36 44 66 99 132 198 396 503 1,006 1,509 2,012 3,018 4,527 5,533 6,036 9,054 11,066 16,599 18,108 22,132 33,198 49,797 66,396 99,594 199,188

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

199,188 99,594 49,797 149,392 74,696 37,348 18,674 9,337 28,012 14,006 7,003 21,010 10,505 31,516 15,758 7,879 23,638 11,819 35,458 17,729 53,188 26,594 13,297 39,892 19,946 9,973 29,920 14,960 7,480 3,740 1,870 935 2,806 1,403 4,210 2,105 6,316 3,158 1,579 4,738 2,369 7,108 3,554 1,777 5,332 2,666 1,333 4,000 2,000 1,000 500 250 125 376 188 94 47 142 71 214

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