641,016

2³ × 3² × 29 × 307

Prime Factor Structure

Factorization String 2^3 × 3^2 × 29 × 307

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Total Divisors 48

Divisor Sum (σ) 1,801,800

Proper Divisor Sum 1,160,784

Digit Sum / Digital Root 18 (Root: 9)

Adjacent Primes #640993 ← → #641051

1 2 3 4 6 8 9 12 18 24 29 36 58 72 87 116 174 232 261 307 348 522 614 696 921 1,044 1,228 1,842 2,088 2,456 2,763 3,684 5,526 7,368 8,903 11,052 17,806 22,104 26,709 35,612 53,418 71,224 80,127 106,836 160,254 213,672 320,508 641,016

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

641,016 320,508 160,254 80,127 240,382 120,191 360,574 180,287 540,862 270,431 811,294 405,647 1,216,942 608,471 1,825,414 912,707 2,738,122 1,369,061 4,107,184 2,053,592 1,026,796 513,398 256,699 770,098 385,049 1,155,148 577,574 288,787 866,362 433,181 1,299,544 649,772 324,886 162,443 487,330 243,665 730,996 365,498 182,749 548,248 274,124 137,062 68,531 205,594 102,797 308,392 154,196 77,098 38,549 115,648 57,824 28,912 14,456 7,228 3,614 1,807 5,422 2,711 8,134 4,067

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