2² × 5 × 3331

Prime Factor Structure

Factorization String 2^2 × 5 × 3331

Distinct Prime Factors 3

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 139,944

Proper Divisor Sum 73,324

Digit Sum / Digital Root 20 (Root: 2)

Adjacent Primes #66617 ← → #66629

1 2 4 5 10 20 3,331 6,662 13,324 16,655 33,310 66,620

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

66,620 33,310 16,655 49,966 24,983 74,950 37,475 112,426 56,213 168,640 84,320 42,160 21,080 10,540 5,270 2,635 7,906 3,953 11,860 5,930 2,965 8,896 4,448 2,224 1,112 556 278 139 418 209 628 314 157 472 236 118 59 178 89 268 134 67 202 101 304 152 76 38 19 58 29 88 44 22 11 34 17 52 26 13

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