3 × 5 × 131

Prime Factor Structure

Factorization String 3 × 5 × 131

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 3,168

Proper Divisor Sum 1,203

Digit Sum / Digital Root 21 (Root: 3)

Adjacent Primes #1951 ← → #1973

1 3 5 15 131 393 655 1,965

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

1,965 5,896 2,948 1,474 737 2,212 1,106 553 1,660 830 415 1,246 623 1,870 935 2,806 1,403 4,210 2,105 6,316 3,158 1,579 4,738 2,369 7,108 3,554 1,777 5,332 2,666 1,333 4,000 2,000 1,000 500 250 125 376 188 94 47 142 71 214 107 322 161 484 242 121 364 182 91 274 137 412 206 103 310 155 466

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