5 × 7² × 89

Prime Factor Structure

Factorization String 5 × 7^2 × 89

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 30,780

Proper Divisor Sum 8,975

Digit Sum / Digital Root 16 (Root: 7)

Adjacent Primes #21803 ← → #21817

1 5 7 35 49 89 245 445 623 3,115 4,361 21,805

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

21,805 65,416 32,708 16,354 8,177 24,532 12,266 6,133 18,400 9,200 4,600 2,300 1,150 575 1,726 863 2,590 1,295 3,886 1,943 5,830 2,915 8,746 4,373 13,120 6,560 3,280 1,640 820 410 205 616 308 154 77 232 116 58 29 88 44 22 11 34 17 52 26 13 40 20 10 5 16 8 4 2 1

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