19² × 31 × 59

Prime Factor Structure

Factorization String 19^2 × 31 × 59

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 731,520

Proper Divisor Sum 71,251

Digit Sum / Digital Root 29 (Root: 2)

Adjacent Primes #660251 ← → #660271

1 19 31 59 361 589 1,121 1,829 11,191 21,299 34,751 660,269

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

660,269 1,980,808 990,404 495,202 247,601 742,804 371,402 185,701 557,104 278,552 139,276 69,638 34,819 104,458 52,229 156,688 78,344 39,172 19,586 9,793 29,380 14,690 7,345 22,036 11,018 5,509 16,528 8,264 4,132 2,066 1,033 3,100 1,550 775 2,326 1,163 3,490 1,745 5,236 2,618 1,309 3,928 1,964 982 491 1,474 737 2,212 1,106 553 1,660 830 415 1,246 623 1,870 935 2,806 1,403 4,210

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