2 × 7 × 71 × 139

Prime Factor Structure

Factorization String 2 × 7 × 71 × 139

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 241,920

Proper Divisor Sum 103,754

Digit Sum / Digital Root 25 (Root: 7)

Adjacent Primes #138163 ← → #138179

1 2 7 14 71 139 142 278 497 973 994 1,946 9,869 19,738 69,083 138,166

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

138,166 69,083 207,250 103,625 310,876 155,438 77,719 233,158 116,579 349,738 174,869 524,608 262,304 131,152 65,576 32,788 16,394 8,197 24,592 12,296 6,148 3,074 1,537 4,612 2,306 1,153 3,460 1,730 865 2,596 1,298 649 1,948 974 487 1,462 731 2,194 1,097 3,292 1,646 823 2,470 1,235 3,706 1,853 5,560 2,780 1,390 695 2,086 1,043 3,130 1,565 4,696 2,348 1,174 587 1,762 881

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