2² × 5 × 198641

Prime Factor Structure

Factorization String 2^2 × 5 × 198641

Distinct Prime Factors 3

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 8,342,964

Proper Divisor Sum 4,370,144

Digit Sum / Digital Root 31 (Root: 4)

Adjacent Primes #3972817 ← → #3972833

1 2 4 5 10 20 198,641 397,282 794,564 993,205 1,986,410 3,972,820

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

3,972,820 1,986,410 993,205 2,979,616 1,489,808 744,904 372,452 186,226 93,113 279,340 139,670 69,835 209,506 104,753 314,260 157,130 78,565 235,696 117,848 58,924 29,462 14,731 44,194 22,097 66,292 33,146 16,573 49,720 24,860 12,430 6,215 18,646 9,323 27,970 13,985 41,956 20,978 10,489 31,468 15,734 7,867 23,602 11,801 35,404 17,702 8,851 26,554 13,277 39,832 19,916 9,958 4,979 14,938 7,469 22,408 11,204 5,602 2,801 8,404 4,202

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