218513

Prime Factor Structure

Factorization String 218513

Distinct Prime Factors 1

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 2

Divisor Sum (σ) 218,514

Proper Divisor Sum 1

Digit Sum / Digital Root 20 (Root: 2)

Adjacent Primes #218509 ← → #218521

1 218,513

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

218,513 655,540 327,770 163,885 491,656 245,828 122,914 61,457 184,372 92,186 46,093 138,280 69,140 34,570 17,285 51,856 25,928 12,964 6,482 3,241 9,724 4,862 2,431 7,294 3,647 10,942 5,471 16,414 8,207 24,622 12,311 36,934 18,467 55,402 27,701 83,104 41,552 20,776 10,388 5,194 2,597 7,792 3,896 1,948 974 487 1,462 731 2,194 1,097 3,292 1,646 823 2,470 1,235 3,706 1,853 5,560 2,780 1,390

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