172,146

2 × 3 × 13 × 2207

Prime Factor Structure

Factorization String 2 × 3 × 13 × 2207

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Total Divisors 16

Divisor Sum (σ) 370,944

Proper Divisor Sum 198,798

Digit Sum / Digital Root 21 (Root: 3)

Adjacent Primes #172127 ← → #172147

1 2 3 6 13 26 39 78 2,207 4,414 6,621 13,242 28,691 57,382 86,073 172,146

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

172,146 86,073 258,220 129,110 64,555 193,666 96,833 290,500 145,250 72,625 217,876 108,938 54,469 163,408 81,704 40,852 20,426 10,213 30,640 15,320 7,660 3,830 1,915 5,746 2,873 8,620 4,310 2,155 6,466 3,233 9,700 4,850 2,425 7,276 3,638 1,819 5,458 2,729 8,188 4,094 2,047 6,142 3,071 9,214 4,607 13,822 6,911 20,734 10,367 31,102 15,551 46,654 23,327 69,982 34,991 104,974 52,487 157,462 78,731 236,194

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