2² × 5 × 7 × 11 × 421

Prime Factor Structure

Factorization String 2^2 × 5 × 7 × 11 × 421

Distinct Prime Factors 5

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 48

Divisor Sum (σ) 1,701,504

Proper Divisor Sum 1,053,164

Digit Sum / Digital Root 25 (Root: 7)

Adjacent Primes #648331 ← → #648341

1 2 4 5 7 10 11 14 20 22 28 35 44 55 70 77 110 140 154 220 308 385 421 770 842 1,540 1,684 2,105 2,947 4,210 4,631 5,894 8,420 9,262 11,788 14,735 18,524 23,155 29,470 32,417 46,310 58,940 64,834 92,620 129,668 162,085 324,170 648,340

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

648,340 324,170 162,085 486,256 243,128 121,564 60,782 30,391 91,174 45,587 136,762 68,381 205,144 102,572 51,286 25,643 76,930 38,465 115,396 57,698 28,849 86,548 43,274 21,637 64,912 32,456 16,228 8,114 4,057 12,172 6,086 3,043 9,130 4,565 13,696 6,848 3,424 1,712 856 428 214 107 322 161 484 242 121 364 182 91 274 137 412 206 103 310 155 466 233 700

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