5 × 13² × 61

Prime Factor Structure

Factorization String 5 × 13^2 × 61

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 68,076

Proper Divisor Sum 16,531

Digit Sum / Digital Root 20 (Root: 2)

Adjacent Primes #51539 ← → #51551

1 5 13 61 65 169 305 793 845 3,965 10,309 51,545

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

51,545 154,636 77,318 38,659 115,978 57,989 173,968 86,984 43,492 21,746 10,873 32,620 16,310 8,155 24,466 12,233 36,700 18,350 9,175 27,526 13,763 41,290 20,645 61,936 30,968 15,484 7,742 3,871 11,614 5,807 17,422 8,711 26,134 13,067 39,202 19,601 58,804 29,402 14,701 44,104 22,052 11,026 5,513 16,540 8,270 4,135 12,406 6,203 18,610 9,305 27,916 13,958 6,979 20,938 10,469 31,408 15,704 7,852 3,926 1,963

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