13 × 9931

Prime Factor Structure

Factorization String 13 × 9931

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 139,048

Proper Divisor Sum 9,945

Digit Sum / Digital Root 16 (Root: 7)

Adjacent Primes #129097 ← → #129113

1 13 9,931 129,103

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

129,103 387,310 193,655 580,966 290,483 871,450 435,725 1,307,176 653,588 326,794 163,397 490,192 245,096 122,548 61,274 30,637 91,912 45,956 22,978 11,489 34,468 17,234 8,617 25,852 12,926 6,463 19,390 9,695 29,086 14,543 43,630 21,815 65,446 32,723 98,170 49,085 147,256 73,628 36,814 18,407 55,222 27,611 82,834 41,417 124,252 62,126 31,063 93,190 46,595 139,786 69,893 209,680 104,840 52,420 26,210 13,105 39,316 19,658 9,829 29,488

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