3 × 7 × 13 × 997

Prime Factor Structure

Factorization String 3 × 7 × 13 × 997

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 447,104

Proper Divisor Sum 174,923

Digit Sum / Digital Root 21 (Root: 3)

Adjacent Primes #272179 ← → #272183

1 3 7 13 21 39 91 273 997 2,991 6,979 12,961 20,937 38,883 90,727 272,181

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

272,181 816,544 408,272 204,136 102,068 51,034 25,517 76,552 38,276 19,138 9,569 28,708 14,354 7,177 21,532 10,766 5,383 16,150 8,075 24,226 12,113 36,340 18,170 9,085 27,256 13,628 6,814 3,407 10,222 5,111 15,334 7,667 23,002 11,501 34,504 17,252 8,626 4,313 12,940 6,470 3,235 9,706 4,853 14,560 7,280 3,640 1,820 910 455 1,366 683 2,050 1,025 3,076 1,538 769 2,308 1,154 577 1,732

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