1,680,378

2 × 3 × 7 × 40009

Prime Factor Structure

Factorization String 2 × 3 × 7 × 40009

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Total Divisors 16

Divisor Sum (σ) 3,840,960

Proper Divisor Sum 2,160,582

Digit Sum / Digital Root 33 (Root: 6)

Adjacent Primes #1680377 ← → #1680401

1 2 3 6 7 14 21 42 40,009 80,018 120,027 240,054 280,063 560,126 840,189 1,680,378

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

1,680,378 840,189 2,520,568 1,260,284 630,142 315,071 945,214 472,607 1,417,822 708,911 2,126,734 1,063,367 3,190,102 1,595,051 4,785,154 2,392,577 7,177,732 3,588,866 1,794,433 5,383,300 2,691,650 1,345,825 4,037,476 2,018,738 1,009,369 3,028,108 1,514,054 757,027 2,271,082 1,135,541 3,406,624 1,703,312 851,656 425,828 212,914 106,457 319,372 159,686 79,843 239,530 119,765 359,296 179,648 89,824 44,912 22,456 11,228 5,614 2,807 8,422 4,211 12,634 6,317 18,952 9,476 4,738 2,369 7,108 3,554 1,777

Browse other published profiles and their separate link collections.