3 × 5 × 17 × 73

Prime Factor Structure

Factorization String 3 × 5 × 17 × 73

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 31,968

Proper Divisor Sum 13,353

Digit Sum / Digital Root 21 (Root: 3)

Adjacent Primes #18593 ← → #18617

1 3 5 15 17 51 73 85 219 255 365 1,095 1,241 3,723 6,205 18,615

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

18,615 55,846 27,923 83,770 41,885 125,656 62,828 31,414 15,707 47,122 23,561 70,684 35,342 17,671 53,014 26,507 79,522 39,761 119,284 59,642 29,821 89,464 44,732 22,366 11,183 33,550 16,775 50,326 25,163 75,490 37,745 113,236 56,618 28,309 84,928 42,464 21,232 10,616 5,308 2,654 1,327 3,982 1,991 5,974 2,987 8,962 4,481 13,444 6,722 3,361 10,084 5,042 2,521 7,564 3,782 1,891 5,674 2,837 8,512 4,256

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