2 × 3² × 5 × 67 × 107

Prime Factor Structure

Factorization String 2 × 3^2 × 5 × 67 × 107

Distinct Prime Factors 5

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 48

Divisor Sum (σ) 1,718,496

Proper Divisor Sum 1,073,286

Digit Sum / Digital Root 18 (Root: 9)

Adjacent Primes #645187 ← → #645233

1 2 3 5 6 9 10 15 18 30 45 67 90 107 134 201 214 321 335 402 535 603 642 670 963 1,005 1,070 1,206 1,605 1,926 2,010 3,015 3,210 4,815 6,030 7,169 9,630 14,338 21,507 35,845 43,014 64,521 71,690 107,535 129,042 215,070 322,605 645,210

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

645,210 322,605 967,816 483,908 241,954 120,977 362,932 181,466 90,733 272,200 136,100 68,050 34,025 102,076 51,038 25,519 76,558 38,279 114,838 57,419 172,258 86,129 258,388 129,194 64,597 193,792 96,896 48,448 24,224 12,112 6,056 3,028 1,514 757 2,272 1,136 568 284 142 71 214 107 322 161 484 242 121 364 182 91 274 137 412 206 103 310 155 466 233 700

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