2⁹ × 821

Prime Factor Structure

Factorization String 2^9 × 821

Distinct Prime Factors 2

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 20

Divisor Sum (σ) 840,906

Proper Divisor Sum 420,554

Digit Sum / Digital Root 16 (Root: 7)

Adjacent Primes #420349 ← → #420353

1 2 4 8 16 32 64 128 256 512 821 1,642 3,284 6,568 13,136 26,272 52,544 105,088 210,176 420,352

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

420,352 210,176 105,088 52,544 26,272 13,136 6,568 3,284 1,642 821 2,464 1,232 616 308 154 77 232 116 58 29 88 44 22 11 34 17 52 26 13 40 20 10 5 16 8 4 2 1

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