2 × 5² × 13 × 613

Prime Factor Structure

Factorization String 2 × 5^2 × 13 × 613

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 799,428

Proper Divisor Sum 400,978

Digit Sum / Digital Root 29 (Root: 2)

Adjacent Primes #398441 ← → #398459

1 2 5 10 13 25 26 50 65 130 325 613 650 1,226 3,065 6,130 7,969 15,325 15,938 30,650 39,845 79,690 199,225 398,450

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

398,450 199,225 597,676 298,838 149,419 448,258 224,129 672,388 336,194 168,097 504,292 252,146 126,073 378,220 189,110 94,555 283,666 141,833 425,500 212,750 106,375 319,126 159,563 478,690 239,345 718,036 359,018 179,509 538,528 269,264 134,632 67,316 33,658 16,829 50,488 25,244 12,622 6,311 18,934 9,467 28,402 14,201 42,604 21,302 10,651 31,954 15,977 47,932 23,966 11,983 35,950 17,975 53,926 26,963 80,890 40,445 121,336 60,668 30,334 15,167

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