3² × 7 × 1381

Prime Factor Structure

Factorization String 3^2 × 7 × 1381

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 143,728

Proper Divisor Sum 56,725

Digit Sum / Digital Root 18 (Root: 9)

Adjacent Primes #86993 ← → #87011

1 3 7 9 21 63 1,381 4,143 9,667 12,429 29,001 87,003

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

87,003 261,010 130,505 391,516 195,758 97,879 293,638 146,819 440,458 220,229 660,688 330,344 165,172 82,586 41,293 123,880 61,940 30,970 15,485 46,456 23,228 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 5,890 2,945 8,836 4,418 2,209 6,628 3,314

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