1,640,006

2 × 383 × 2141

1,640,006 is even and not a perfect square. Its factorization is 2 × 383 × 2141 and its 8 divisors sum to 2,467,584.

Prime Factor Structure

Factorization String 2 × 383 × 2141

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Total Divisors 8

Divisor Sum (σ) 2,467,584

Proper Divisor Sum 827,578

Digit Sum / Digital Root 17 (Root: 8)

Adjacent Primes #1639999 ← → #1640017

1 2 383 766 2,141 4,282 820,003 1,640,006

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

1,640,006 820,003 2,460,010 1,230,005 3,690,016 1,845,008 922,504 461,252 230,626 115,313 345,940 172,970 86,485 259,456 129,728 64,864 32,432 16,216 8,108 4,054 2,027 6,082 3,041 9,124 4,562 2,281 6,844 3,422 1,711 5,134 2,567 7,702 3,851 11,554 5,777 17,332 8,666 4,333 13,000 6,500 3,250 1,625 4,876 2,438 1,219 3,658 1,829 5,488 2,744 1,372 686 343 1,030 515 1,546 773 2,320 1,160 580 290