7 × 13

Prime Factor Structure

Factorization String 7 × 13

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 112

Proper Divisor Sum 21

Digit Sum / Digital Root 10 (Root: 1)

Adjacent Primes #89 ← → #97

1 7 13 91

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

91 274 137 412 206 103 310 155 466 233 700 350 175 526 263 790 395 1,186 593 1,780 890 445 1,336 668 334 167 502 251 754 377 1,132 566 283 850 425 1,276 638 319 958 479 1,438 719 2,158 1,079 3,238 1,619 4,858 2,429 7,288 3,644 1,822 911 2,734 1,367 4,102 2,051 6,154 3,077 9,232 4,616

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