2² × 5 × 53 × 139

Prime Factor Structure

Factorization String 2^2 × 5 × 53 × 139

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 317,520

Proper Divisor Sum 170,180

Digit Sum / Digital Root 19 (Root: 1)

Adjacent Primes #147331 ← → #147341

1 2 4 5 10 20 53 106 139 212 265 278 530 556 695 1,060 1,390 2,780 7,367 14,734 29,468 36,835 73,670 147,340

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

147,340 73,670 36,835 110,506 55,253 165,760 82,880 41,440 20,720 10,360 5,180 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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