13 × 10687

Prime Factor Structure

Factorization String 13 × 10687

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 149,632

Proper Divisor Sum 10,701

Digit Sum / Digital Root 25 (Root: 7)

Adjacent Primes #138923 ← → #138937

1 13 10,687 138,931

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

138,931 416,794 208,397 625,192 312,596 156,298 78,149 234,448 117,224 58,612 29,306 14,653 43,960 21,980 10,990 5,495 16,486 8,243 24,730 12,365 37,096 18,548 9,274 4,637 13,912 6,956 3,478 1,739 5,218 2,609 7,828 3,914 1,957 5,872 2,936 1,468 734 367 1,102 551 1,654 827 2,482 1,241 3,724 1,862 931 2,794 1,397 4,192 2,096 1,048 524 262 131 394 197 592 296 148

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