3,992,020

2² × 5 × 199601

Prime Factor Structure

Factorization String 2^2 × 5 × 199601

Distinct Prime Factors 3

Square Status No

Abundance Measure Abundant

Total Divisors 12

Divisor Sum (σ) 8,383,284

Proper Divisor Sum 4,391,264

Digit Sum / Digital Root 25 (Root: 7)

Adjacent Primes #3992011 ← → #3992029

1 2 4 5 10 20 199,601 399,202 798,404 998,005 1,996,010 3,992,020

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

3,992,020 1,996,010 998,005 2,994,016 1,497,008 748,504 374,252 187,126 93,563 280,690 140,345 421,036 210,518 105,259 315,778 157,889 473,668 236,834 118,417 355,252 177,626 88,813 266,440 133,220 66,610 33,305 99,916 49,958 24,979 74,938 37,469 112,408 56,204 28,102 14,051 42,154 21,077 63,232 31,616 15,808 7,904 3,952 1,976 988 494 247 742 371 1,114 557 1,672 836 418 209 628 314 157 472 236 118

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