2 × 3 × 5² × 139

Prime Factor Structure

Factorization String 2 × 3 × 5^2 × 139

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 52,080

Proper Divisor Sum 31,230

Digit Sum / Digital Root 15 (Root: 6)

Adjacent Primes #20849 ← → #20857

1 2 3 5 6 10 15 25 30 50 75 139 150 278 417 695 834 1,390 2,085 3,475 4,170 6,950 10,425 20,850

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

20,850 10,425 31,276 15,638 7,819 23,458 11,729 35,188 17,594 8,797 26,392 13,196 6,598 3,299 9,898 4,949 14,848 7,424 3,712 1,856 928 464 232 116 58 29 88 44 22 11 34 17 52 26 13 40 20 10 5 16 8 4 2 1

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