217,442

2 × 23 × 29 × 163

Prime Factor Structure

Factorization String 2 × 23 × 29 × 163

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Total Divisors 16

Divisor Sum (σ) 354,240

Proper Divisor Sum 136,798

Digit Sum / Digital Root 20 (Root: 2)

Adjacent Primes #217439 ← → #217457

1 2 23 29 46 58 163 326 667 1,334 3,749 4,727 7,498 9,454 108,721 217,442

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

217,442 108,721 326,164 163,082 81,541 244,624 122,312 61,156 30,578 15,289 45,868 22,934 11,467 34,402 17,201 51,604 25,802 12,901 38,704 19,352 9,676 4,838 2,419 7,258 3,629 10,888 5,444 2,722 1,361 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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