2² × 5 × 13 × 643

Prime Factor Structure

Factorization String 2^2 × 5 × 13 × 643

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 378,672

Proper Divisor Sum 211,492

Digit Sum / Digital Root 23 (Root: 5)

Adjacent Primes #167177 ← → #167191

1 2 4 5 10 13 20 26 52 65 130 260 643 1,286 2,572 3,215 6,430 8,359 12,860 16,718 33,436 41,795 83,590 167,180

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

167,180 83,590 41,795 125,386 62,693 188,080 94,040 47,020 23,510 11,755 35,266 17,633 52,900 26,450 13,225 39,676 19,838 9,919 29,758 14,879 44,638 22,319 66,958 33,479 100,438 50,219 150,658 75,329 225,988 112,994 56,497 169,492 84,746 42,373 127,120 63,560 31,780 15,890 7,945 23,836 11,918 5,959 17,878 8,939 26,818 13,409 40,228 20,114 10,057 30,172 15,086 7,543 22,630 11,315 33,946 16,973 50,920 25,460 12,730 6,365

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