2² × 5 × 37 × 173

Prime Factor Structure

Factorization String 2^2 × 5 × 37 × 173

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 277,704

Proper Divisor Sum 149,684

Digit Sum / Digital Root 13 (Root: 4)

Adjacent Primes #127997 ← → #128021

1 2 4 5 10 20 37 74 148 173 185 346 370 692 740 865 1,730 3,460 6,401 12,802 25,604 32,005 64,010 128,020

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

128,020 64,010 32,005 96,016 48,008 24,004 12,002 6,001 18,004 9,002 4,501 13,504 6,752 3,376 1,688 844 422 211 634 317 952 476 238 119 358 179 538 269 808 404 202 101 304 152 76 38 19 58 29 88 44 22 11 34 17 52 26 13 40 20 10 5 16 8 4 2 1

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