2 × 5² × 17 × 23 × 43

Prime Factor Structure

Factorization String 2 × 5^2 × 17 × 23 × 43

Distinct Prime Factors 5

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 48

Divisor Sum (σ) 1,767,744

Proper Divisor Sum 927,094

Digit Sum / Digital Root 23 (Root: 5)

Adjacent Primes #840643 ← → #840661

1 2 5 10 17 23 25 34 43 46 50 85 86 115 170 215 230 391 425 430 575 731 782 850 989 1,075 1,150 1,462 1,955 1,978 2,150 3,655 3,910 4,945 7,310 9,775 9,890 16,813 18,275 19,550 24,725 33,626 36,550 49,450 84,065 168,130 420,325 840,650

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

840,650 420,325 1,260,976 630,488 315,244 157,622 78,811 236,434 118,217 354,652 177,326 88,663 265,990 132,995 398,986 199,493 598,480 299,240 149,620 74,810 37,405 112,216 56,108 28,054 14,027 42,082 21,041 63,124 31,562 15,781 47,344 23,672 11,836 5,918 2,959 8,878 4,439 13,318 6,659 19,978 9,989 29,968 14,984 7,492 3,746 1,873 5,620 2,810 1,405 4,216 2,108 1,054 527 1,582 791 2,374 1,187 3,562 1,781 5,344

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