2² × 7 × 7727

Prime Factor Structure

Factorization String 2^2 × 7 × 7727

Distinct Prime Factors 3

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 432,768

Proper Divisor Sum 216,412

Digit Sum / Digital Root 23 (Root: 5)

Adjacent Primes #216347 ← → #216371

1 2 4 7 14 28 7,727 15,454 30,908 54,089 108,178 216,356

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

216,356 108,178 54,089 162,268 81,134 40,567 121,702 60,851 182,554 91,277 273,832 136,916 68,458 34,229 102,688 51,344 25,672 12,836 6,418 3,209 9,628 4,814 2,407 7,222 3,611 10,834 5,417 16,252 8,126 4,063 12,190 6,095 18,286 9,143 27,430 13,715 41,146 20,573 61,720 30,860 15,430 7,715 23,146 11,573 34,720 17,360 8,680 4,340 2,170 1,085 3,256 1,628 814 407 1,222 611 1,834 917 2,752 1,376

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