2,198,005

5 × 439601

2,198,005 factors as 5 × 439601. Its 4 positive divisors give a proper-divisor sum of 439,607, so this integer is deficient. The Collatz stopping time is 254 steps.

Prime Factor Structure

Factorization String 5 × 439601

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 2,637,612

Proper Divisor Sum 439,607

Digit Sum / Digital Root 25 (Root: 7)

Adjacent Primes #2198003 ← → #2198011

Radix Representation

Decimal	2198005
Binary	1000011000100111110101 (22 bits)
Octal	0o10304765
Hexadecimal	0x2189F5

Divisor Catalog (4)

1 5 439,601 2,198,005

Collatz Trajectory (254 steps to reach 1)

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

2,198,005 6,594,016 3,297,008 1,648,504 824,252 412,126 206,063 618,190 309,095 927,286 463,643 1,390,930 695,465 2,086,396 1,043,198 521,599 1,564,798 782,399 2,347,198 1,173,599 3,520,798 1,760,399 5,281,198 2,640,599 7,921,798 3,960,899 11,882,698 5,941,349 17,824,048 8,912,024 4,456,012 2,228,006 1,114,003 3,342,010 1,671,005 5,013,016 2,506,508 1,253,254 626,627 1,879,882 939,941 2,819,824 1,409,912 704,956 352,478 176,239 528,718 264,359 793,078 396,539 1,189,618 594,809 1,784,428 892,214 446,107 1,338,322 669,161 2,007,484 1,003,742 501,871

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