1,998,209

1998209

1,998,209 factors as 1998209. Its 2 positive divisors give a proper-divisor sum of 1, so this integer is deficient. The Collatz stopping time is 114 steps.

Prime Factor Structure

Factorization String 1998209

Distinct Prime Factors 1

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 2

Divisor Sum (σ) 1,998,210

Proper Divisor Sum 1

Digit Sum / Digital Root 38 (Root: 2)

Adjacent Primes #1998181 ← → #1998221

Radix Representation

Decimal	1998209
Binary	111100111110110000001 (21 bits)
Octal	0o7476601
Hexadecimal	0x1E7D81

Divisor Catalog (2)

1 1,998,209

Collatz Trajectory (114 steps to reach 1)

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

1,998,209 5,994,628 2,997,314 1,498,657 4,495,972 2,247,986 1,123,993 3,371,980 1,685,990 842,995 2,528,986 1,264,493 3,793,480 1,896,740 948,370 474,185 1,422,556 711,278 355,639 1,066,918 533,459 1,600,378 800,189 2,400,568 1,200,284 600,142 300,071 900,214 450,107 1,350,322 675,161 2,025,484 1,012,742 506,371 1,519,114 759,557 2,278,672 1,139,336 569,668 284,834 142,417 427,252 213,626 106,813 320,440 160,220 80,110 40,055 120,166 60,083 180,250 90,125 270,376 135,188 67,594 33,797 101,392 50,696 25,348 12,674

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