3 × 7 × 131 × 239

Prime Factor Structure

Factorization String 3 × 7 × 131 × 239

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 1,013,760

Proper Divisor Sum 356,271

Digit Sum / Digital Root 39 (Root: 3)

Adjacent Primes #657473 ← → #657491

1 3 7 21 131 239 393 717 917 1,673 2,751 5,019 31,309 93,927 219,163 657,489

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

657,489 1,972,468 986,234 493,117 1,479,352 739,676 369,838 184,919 554,758 277,379 832,138 416,069 1,248,208 624,104 312,052 156,026 78,013 234,040 117,020 58,510 29,255 87,766 43,883 131,650 65,825 197,476 98,738 49,369 148,108 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

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