3² × 19 × 1289

Prime Factor Structure

Factorization String 3^2 × 19 × 1289

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 335,400

Proper Divisor Sum 114,981

Digit Sum / Digital Root 18 (Root: 9)

Adjacent Primes #220411 ← → #220421

1 3 9 19 57 171 1,289 3,867 11,601 24,491 73,473 220,419

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

220,419 661,258 330,629 991,888 495,944 247,972 123,986 61,993 185,980 92,990 46,495 139,486 69,743 209,230 104,615 313,846 156,923 470,770 235,385 706,156 353,078 176,539 529,618 264,809 794,428 397,214 198,607 595,822 297,911 893,734 446,867 1,340,602 670,301 2,010,904 1,005,452 502,726 251,363 754,090 377,045 1,131,136 565,568 282,784 141,392 70,696 35,348 17,674 8,837 26,512 13,256 6,628 3,314 1,657 4,972 2,486 1,243 3,730 1,865 5,596 2,798 1,399

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