2² × 13 × 31991

Prime Factor Structure

Factorization String 2^2 × 13 × 31991

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 3,135,216

Proper Divisor Sum 1,471,684

Digit Sum / Digital Root 26 (Root: 8)

Adjacent Primes #1663523 ← → #1663537

1 2 4 13 26 52 31,991 63,982 127,964 415,883 831,766 1,663,532

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

1,663,532 831,766 415,883 1,247,650 623,825 1,871,476 935,738 467,869 1,403,608 701,804 350,902 175,451 526,354 263,177 789,532 394,766 197,383 592,150 296,075 888,226 444,113 1,332,340 666,170 333,085 999,256 499,628 249,814 124,907 374,722 187,361 562,084 281,042 140,521 421,564 210,782 105,391 316,174 158,087 474,262 237,131 711,394 355,697 1,067,092 533,546 266,773 800,320 400,160 200,080 100,040 50,020 25,010 12,505 37,516 18,758 9,379 28,138 14,069 42,208 21,104 10,552

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