3 × 5² × 13

Prime Factor Structure

Factorization String 3 × 5^2 × 13

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 1,736

Proper Divisor Sum 761

Digit Sum / Digital Root 21 (Root: 3)

Adjacent Primes #971 ← → #977

1 3 5 13 15 25 39 65 75 195 325 975

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

975 2,926 1,463 4,390 2,195 6,586 3,293 9,880 4,940 2,470 1,235 3,706 1,853 5,560 2,780 1,390 695 2,086 1,043 3,130 1,565 4,696 2,348 1,174 587 1,762 881 2,644 1,322 661 1,984 992 496 248 124 62 31 94 47 142 71 214 107 322 161 484 242 121 364 182 91 274 137 412 206 103 310 155 466 233

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