138,155

5 × 27631

Prime Factor Structure

Factorization String 5 × 27631

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Total Divisors 4

Divisor Sum (σ) 165,792

Proper Divisor Sum 27,637

Digit Sum / Digital Root 23 (Root: 5)

Adjacent Primes #138143 ← → #138157

1 5 27,631 138,155

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

138,155 414,466 207,233 621,700 310,850 155,425 466,276 233,138 116,569 349,708 174,854 87,427 262,282 131,141 393,424 196,712 98,356 49,178 24,589 73,768 36,884 18,442 9,221 27,664 13,832 6,916 3,458 1,729 5,188 2,594 1,297 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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