138,205

5 × 131 × 211

Prime Factor Structure

Factorization String 5 × 131 × 211

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Total Divisors 8

Divisor Sum (σ) 167,904

Proper Divisor Sum 29,699

Digit Sum / Digital Root 19 (Root: 1)

Adjacent Primes #138197 ← → #138209

1 5 131 211 655 1,055 27,641 138,205

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

138,205 414,616 207,308 103,654 51,827 155,482 77,741 233,224 116,612 58,306 29,153 87,460 43,730 21,865 65,596 32,798 16,399 49,198 24,599 73,798 36,899 110,698 55,349 166,048 83,024 41,512 20,756 10,378 5,189 15,568 7,784 3,892 1,946 973 2,920 1,460 730 365 1,096 548 274 137 412 206 103 310 155 466 233 700 350 175 526 263 790 395 1,186 593 1,780 890

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