2 × 7² × 31 × 131

Prime Factor Structure

Factorization String 2 × 7^2 × 31 × 131

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 722,304

Proper Divisor Sum 324,326

Digit Sum / Digital Root 43 (Root: 7)

Adjacent Primes #397973 ← → #397981

1 2 7 14 31 49 62 98 131 217 262 434 917 1,519 1,834 3,038 4,061 6,419 8,122 12,838 28,427 56,854 198,989 397,978

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

397,978 198,989 596,968 298,484 149,242 74,621 223,864 111,932 55,966 27,983 83,950 41,975 125,926 62,963 188,890 94,445 283,336 141,668 70,834 35,417 106,252 53,126 26,563 79,690 39,845 119,536 59,768 29,884 14,942 7,471 22,414 11,207 33,622 16,811 50,434 25,217 75,652 37,826 18,913 56,740 28,370 14,185 42,556 21,278 10,639 31,918 15,959 47,878 23,939 71,818 35,909 107,728 53,864 26,932 13,466 6,733 20,200 10,100 5,050 2,525

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