2 × 3² × 109 × 199

Prime Factor Structure

Factorization String 2 × 3^2 × 109 × 199

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 858,000

Proper Divisor Sum 467,562

Digit Sum / Digital Root 27 (Root: 9)

Adjacent Primes #390437 ← → #390449

1 2 3 6 9 18 109 199 218 327 398 597 654 981 1,194 1,791 1,962 3,582 21,691 43,382 65,073 130,146 195,219 390,438

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

390,438 195,219 585,658 292,829 878,488 439,244 219,622 109,811 329,434 164,717 494,152 247,076 123,538 61,769 185,308 92,654 46,327 138,982 69,491 208,474 104,237 312,712 156,356 78,178 39,089 117,268 58,634 29,317 87,952 43,976 21,988 10,994 5,497 16,492 8,246 4,123 12,370 6,185 18,556 9,278 4,639 13,918 6,959 20,878 10,439 31,318 15,659 46,978 23,489 70,468 35,234 17,617 52,852 26,426 13,213 39,640 19,820 9,910 4,955 14,866

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