2² × 5² × 3947

Prime Factor Structure

Factorization String 2^2 × 5^2 × 3947

Distinct Prime Factors 3

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 18

Divisor Sum (σ) 856,716

Proper Divisor Sum 462,016

Digit Sum / Digital Root 23 (Root: 5)

Adjacent Primes #394699 ← → #394717

1 2 4 5 10 20 25 50 100 3,947 7,894 15,788 19,735 39,470 78,940 98,675 197,350 394,700

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

394,700 197,350 98,675 296,026 148,013 444,040 222,020 111,010 55,505 166,516 83,258 41,629 124,888 62,444 31,222 15,611 46,834 23,417 70,252 35,126 17,563 52,690 26,345 79,036 39,518 19,759 59,278 29,639 88,918 44,459 133,378 66,689 200,068 100,034 50,017 150,052 75,026 37,513 112,540 56,270 28,135 84,406 42,203 126,610 63,305 189,916 94,958 47,479 142,438 71,219 213,658 106,829 320,488 160,244 80,122 40,061 120,184 60,092 30,046 15,023

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