7 × 23 × 131

Prime Factor Structure

Factorization String 7 × 23 × 131

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 25,344

Proper Divisor Sum 4,253

Digit Sum / Digital Root 13 (Root: 4)

Adjacent Primes #21089 ← → #21101

1 7 23 131 161 917 3,013 21,091

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

21,091 63,274 31,637 94,912 47,456 23,728 11,864 5,932 2,966 1,483 4,450 2,225 6,676 3,338 1,669 5,008 2,504 1,252 626 313 940 470 235 706 353 1,060 530 265 796 398 199 598 299 898 449 1,348 674 337 1,012 506 253 760 380 190 95 286 143 430 215 646 323 970 485 1,456 728 364 182 91 274 137

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