2 × 11² × 29 × 31

Prime Factor Structure

Factorization String 2 × 11^2 × 29 × 31

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 383,040

Proper Divisor Sum 165,482

Digit Sum / Digital Root 28 (Root: 1)

Adjacent Primes #217519 ← → #217559

1 2 11 22 29 31 58 62 121 242 319 341 638 682 899 1,798 3,509 3,751 7,018 7,502 9,889 19,778 108,779 217,558

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

217,558 108,779 326,338 163,169 489,508 244,754 122,377 367,132 183,566 91,783 275,350 137,675 413,026 206,513 619,540 309,770 154,885 464,656 232,328 116,164 58,082 29,041 87,124 43,562 21,781 65,344 32,672 16,336 8,168 4,084 2,042 1,021 3,064 1,532 766 383 1,150 575 1,726 863 2,590 1,295 3,886 1,943 5,830 2,915 8,746 4,373 13,120 6,560 3,280 1,640 820 410 205 616 308 154 77 232

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