3 × 7² × 17 × 103

Prime Factor Structure

Factorization String 3 × 7^2 × 17 × 103

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 426,816

Proper Divisor Sum 169,419

Digit Sum / Digital Root 33 (Root: 6)

Adjacent Primes #257381 ← → #257399

1 3 7 17 21 49 51 103 119 147 309 357 721 833 1,751 2,163 2,499 5,047 5,253 12,257 15,141 36,771 85,799 257,397

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

257,397 772,192 386,096 193,048 96,524 48,262 24,131 72,394 36,197 108,592 54,296 27,148 13,574 6,787 20,362 10,181 30,544 15,272 7,636 3,818 1,909 5,728 2,864 1,432 716 358 179 538 269 808 404 202 101 304 152 76 38 19 58 29 88 44 22 11 34 17 52 26 13 40 20 10 5 16 8 4 2 1

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