2² × 67 × 79

Prime Factor Structure

Factorization String 2^2 × 67 × 79

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 38,080

Proper Divisor Sum 16,908

Digit Sum / Digital Root 13 (Root: 4)

Adjacent Primes #21169 ← → #21179

1 2 4 67 79 134 158 268 316 5,293 10,586 21,172

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

21,172 10,586 5,293 15,880 7,940 3,970 1,985 5,956 2,978 1,489 4,468 2,234 1,117 3,352 1,676 838 419 1,258 629 1,888 944 472 236 118 59 178 89 268 134 67 202 101 304 152 76 38 19 58 29 88 44 22 11 34 17 52 26 13 40 20 10 5 16 8 4 2 1

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