648,284

2² × 7 × 13² × 137

Prime Factor Structure

Factorization String 2^2 × 7 × 13^2 × 137

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Total Divisors 36

Divisor Sum (σ) 1,414,224

Proper Divisor Sum 765,940

Digit Sum / Digital Root 32 (Root: 5)

Adjacent Primes #648283 ← → #648289

1 2 4 7 13 14 26 28 52 91 137 169 182 274 338 364 548 676 959 1,183 1,781 1,918 2,366 3,562 3,836 4,732 7,124 12,467 23,153 24,934 46,306 49,868 92,612 162,071 324,142 648,284

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

648,284 324,142 162,071 486,214 243,107 729,322 364,661 1,093,984 546,992 273,496 136,748 68,374 34,187 102,562 51,281 153,844 76,922 38,461 115,384 57,692 28,846 14,423 43,270 21,635 64,906 32,453 97,360 48,680 24,340 12,170 6,085 18,256 9,128 4,564 2,282 1,141 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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