2⁵ × 20021

Prime Factor Structure

Factorization String 2^5 × 20021

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 1,261,386

Proper Divisor Sum 620,714

Digit Sum / Digital Root 25 (Root: 7)

Adjacent Primes #640669 ← → #640687

1 2 4 8 16 32 20,021 40,042 80,084 160,168 320,336 640,672

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

640,672 320,336 160,168 80,084 40,042 20,021 60,064 30,032 15,016 7,508 3,754 1,877 5,632 2,816 1,408 704 352 176 88 44 22 11 34 17 52 26 13 40 20 10 5 16 8 4 2 1

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