642,006

2 × 3⁵ × 1321

Prime Factor Structure

Factorization String 2 × 3^5 × 1321

Distinct Prime Factors 3

Square Status No

Abundance Measure Abundant

Total Divisors 24

Divisor Sum (σ) 1,443,624

Proper Divisor Sum 801,618

Digit Sum / Digital Root 18 (Root: 9)

Adjacent Primes #641981 ← → #642011

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

642,006 321,003 963,010 481,505 1,444,516 722,258 361,129 1,083,388 541,694 270,847 812,542 406,271 1,218,814 609,407 1,828,222 914,111 2,742,334 1,371,167 4,113,502 2,056,751 6,170,254 3,085,127 9,255,382 4,627,691 13,883,074 6,941,537 20,824,612 10,412,306 5,206,153 15,618,460 7,809,230 3,904,615 11,713,846 5,856,923 17,570,770 8,785,385 26,356,156 13,178,078 6,589,039 19,767,118 9,883,559 29,650,678 14,825,339 44,476,018 22,238,009 66,714,028 33,357,014 16,678,507 50,035,522 25,017,761 75,053,284 37,526,642 18,763,321 56,289,964 28,144,982 14,072,491 42,217,474 21,108,737 63,326,212 31,663,106

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