3 × 5 × 7 × 521

Prime Factor Structure

Factorization String 3 × 5 × 7 × 521

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 100,224

Proper Divisor Sum 45,519

Digit Sum / Digital Root 21 (Root: 3)

Adjacent Primes #54679 ← → #54709

1 3 5 7 15 21 35 105 521 1,563 2,605 3,647 7,815 10,941 18,235 54,705

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

54,705 164,116 82,058 41,029 123,088 61,544 30,772 15,386 7,693 23,080 11,540 5,770 2,885 8,656 4,328 2,164 1,082 541 1,624 812 406 203 610 305 916 458 229 688 344 172 86 43 130 65 196 98 49 148 74 37 112 56 28 14 7 22 11 34 17 52 26 13 40 20 10 5 16 8 4 2

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