2² × 5 × 1087

Prime Factor Structure

Factorization String 2^2 × 5 × 1087

Distinct Prime Factors 3

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 45,696

Proper Divisor Sum 23,956

Digit Sum / Digital Root 14 (Root: 5)

Adjacent Primes #21739 ← → #21751

1 2 4 5 10 20 1,087 2,174 4,348 5,435 10,870 21,740

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

21,740 10,870 5,435 16,306 8,153 24,460 12,230 6,115 18,346 9,173 27,520 13,760 6,880 3,440 1,720 860 430 215 646 323 970 485 1,456 728 364 182 91 274 137 412 206 103 310 155 466 233 700 350 175 526 263 790 395 1,186 593 1,780 890 445 1,336 668 334 167 502 251 754 377 1,132 566 283 850

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