2,138,591

7 × 13 × 71 × 331

Prime Factor Structure

Factorization String 7 × 13 × 71 × 331

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Total Divisors 16

Divisor Sum (σ) 2,677,248

Proper Divisor Sum 538,657

Digit Sum / Digital Root 29 (Root: 2)

Adjacent Primes #2138569 ← → #2138593

1 7 13 71 91 331 497 923 2,317 4,303 6,461 23,501 30,121 164,507 305,513 2,138,591

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

2,138,591 6,415,774 3,207,887 9,623,662 4,811,831 14,435,494 7,217,747 21,653,242 10,826,621 32,479,864 16,239,932 8,119,966 4,059,983 12,179,950 6,089,975 18,269,926 9,134,963 27,404,890 13,702,445 41,107,336 20,553,668 10,276,834 5,138,417 15,415,252 7,707,626 3,853,813 11,561,440 5,780,720 2,890,360 1,445,180 722,590 361,295 1,083,886 541,943 1,625,830 812,915 2,438,746 1,219,373 3,658,120 1,829,060 914,530 457,265 1,371,796 685,898 342,949 1,028,848 514,424 257,212 128,606 64,303 192,910 96,455 289,366 144,683 434,050 217,025 651,076 325,538 162,769 488,308

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