λ
Ratio Atlas

1,776,638

2 × 888319
Deficient Even Composite

1,776,638 factors as 2 × 888319. Its 4 positive divisors give a proper-divisor sum of 888,322, so this integer is deficient. The Collatz stopping time is 119 steps.

Prime Factor Structure

Factorization String 2 × 888319
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 4
Divisor Sum (σ) 2,664,960
Proper Divisor Sum 888,322
Digit Sum / Digital Root 38 (Root: 2)
Adjacent Primes #1776637 ← → #1776659

Radix Representation

Decimal 1776638
Binary 110110001101111111110 (21 bits)
Octal 0o6615776
Hexadecimal 0x1B1BFE

Divisor Catalog (4)

1 2 888,319 1,776,638

Collatz Trajectory (119 steps to reach 1)

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

1,776,638 888,319 2,664,958 1,332,479 3,997,438 1,998,719 5,996,158 2,998,079 8,994,238 4,497,119 13,491,358 6,745,679 20,237,038 10,118,519 30,355,558 15,177,779 45,533,338 22,766,669 68,300,008 34,150,004 17,075,002 8,537,501 25,612,504 12,806,252 6,403,126 3,201,563 9,604,690 4,802,345 14,407,036 7,203,518 3,601,759 10,805,278 5,402,639 16,207,918 8,103,959 24,311,878 12,155,939 36,467,818 18,233,909 54,701,728 27,350,864 13,675,432 6,837,716 3,418,858 1,709,429 5,128,288 2,564,144 1,282,072 641,036 320,518 160,259 480,778 240,389 721,168 360,584 180,292 90,146 45,073 135,220 67,610

More profiles

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