3 × 5 × 17 × 83

Prime Factor Structure

Factorization String 3 × 5 × 17 × 83

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 36,288

Proper Divisor Sum 15,123

Digit Sum / Digital Root 15 (Root: 6)

Adjacent Primes #21163 ← → #21169

1 3 5 15 17 51 83 85 249 255 415 1,245 1,411 4,233 7,055 21,165

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

21,165 63,496 31,748 15,874 7,937 23,812 11,906 5,953 17,860 8,930 4,465 13,396 6,698 3,349 10,048 5,024 2,512 1,256 628 314 157 472 236 118 59 178 89 268 134 67 202 101 304 152 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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