3² × 13 × 19 × 61

Prime Factor Structure

Factorization String 3^2 × 13 × 19 × 61

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 225,680

Proper Divisor Sum 90,077

Digit Sum / Digital Root 18 (Root: 9)

Adjacent Primes #135601 ← → #135607

1 3 9 13 19 39 57 61 117 171 183 247 549 741 793 1,159 2,223 2,379 3,477 7,137 10,431 15,067 45,201 135,603

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

135,603 406,810 203,405 610,216 305,108 152,554 76,277 228,832 114,416 57,208 28,604 14,302 7,151 21,454 10,727 32,182 16,091 48,274 24,137 72,412 36,206 18,103 54,310 27,155 81,466 40,733 122,200 61,100 30,550 15,275 45,826 22,913 68,740 34,370 17,185 51,556 25,778 12,889 38,668 19,334 9,667 29,002 14,501 43,504 21,752 10,876 5,438 2,719 8,158 4,079 12,238 6,119 18,358 9,179 27,538 13,769 41,308 20,654 10,327 30,982

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