3 × 7 × 47 × 131

Prime Factor Structure

Factorization String 3 × 7 × 47 × 131

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 202,752

Proper Divisor Sum 73,455

Digit Sum / Digital Root 30 (Root: 3)

Adjacent Primes #129293 ← → #129313

1 3 7 21 47 131 141 329 393 917 987 2,751 6,157 18,471 43,099 129,297

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

129,297 387,892 193,946 96,973 290,920 145,460 72,730 36,365 109,096 54,548 27,274 13,637 40,912 20,456 10,228 5,114 2,557 7,672 3,836 1,918 959 2,878 1,439 4,318 2,159 6,478 3,239 9,718 4,859 14,578 7,289 21,868 10,934 5,467 16,402 8,201 24,604 12,302 6,151 18,454 9,227 27,682 13,841 41,524 20,762 10,381 31,144 15,572 7,786 3,893 11,680 5,840 2,920 1,460 730 365 1,096 548 274 137

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