2 × 3² × 5 × 23 × 67

Prime Factor Structure

Factorization String 2 × 3^2 × 5 × 23 × 67

Distinct Prime Factors 5

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 48

Divisor Sum (σ) 381,888

Proper Divisor Sum 243,198

Digit Sum / Digital Root 27 (Root: 9)

Adjacent Primes #138683 ← → #138727

1 2 3 5 6 9 10 15 18 23 30 45 46 67 69 90 115 134 138 201 207 230 335 345 402 414 603 670 690 1,005 1,035 1,206 1,541 2,010 2,070 3,015 3,082 4,623 6,030 7,705 9,246 13,869 15,410 23,115 27,738 46,230 69,345 138,690

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

138,690 69,345 208,036 104,018 52,009 156,028 78,014 39,007 117,022 58,511 175,534 87,767 263,302 131,651 394,954 197,477 592,432 296,216 148,108 74,054 37,027 111,082 55,541 166,624 83,312 41,656 20,828 10,414 5,207 15,622 7,811 23,434 11,717 35,152 17,576 8,788 4,394 2,197 6,592 3,296 1,648 824 412 206 103 310 155 466 233 700 350 175 526 263 790 395 1,186 593 1,780 890

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