2² × 5 × 21757

Prime Factor Structure

Factorization String 2^2 × 5 × 21757

Distinct Prime Factors 3

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 913,836

Proper Divisor Sum 478,696

Digit Sum / Digital Root 17 (Root: 8)

Adjacent Primes #435139 ← → #435143

1 2 4 5 10 20 21,757 43,514 87,028 108,785 217,570 435,140

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

435,140 217,570 108,785 326,356 163,178 81,589 244,768 122,384 61,192 30,596 15,298 7,649 22,948 11,474 5,737 17,212 8,606 4,303 12,910 6,455 19,366 9,683 29,050 14,525 43,576 21,788 10,894 5,447 16,342 8,171 24,514 12,257 36,772 18,386 9,193 27,580 13,790 6,895 20,686 10,343 31,030 15,515 46,546 23,273 69,820 34,910 17,455 52,366 26,183 78,550 39,275 117,826 58,913 176,740 88,370 44,185 132,556 66,278 33,139 99,418

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