5 × 7 × 31 × 199

Prime Factor Structure

Factorization String 5 × 7 × 31 × 199

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 307,200

Proper Divisor Sum 91,285

Digit Sum / Digital Root 23 (Root: 5)

Adjacent Primes #215909 ← → #215921

1 5 7 31 35 155 199 217 995 1,085 1,393 6,169 6,965 30,845 43,183 215,915

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

215,915 647,746 323,873 971,620 485,810 242,905 728,716 364,358 182,179 546,538 273,269 819,808 409,904 204,952 102,476 51,238 25,619 76,858 38,429 115,288 57,644 28,822 14,411 43,234 21,617 64,852 32,426 16,213 48,640 24,320 12,160 6,080 3,040 1,520 760 380 190 95 286 143 430 215 646 323 970 485 1,456 728 364 182 91 274 137 412 206 103 310 155 466 233

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