λ
Zalai Atlas

2,018,578

2 × 1009289
Deficient Even Composite

2,018,578 has the prime decomposition 2 × 1009289. Its 2 distinct prime factors produce 4 positive divisors.

Prime Factor Structure

Factorization String 2 × 1009289
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 4
Divisor Sum (σ) 3,027,870
Proper Divisor Sum 1,009,292
Digit Sum / Digital Root 31 (Root: 4)
Adjacent Primes #2018573 ← → #2018581

Radix Representation

Decimal 2018578
Binary 111101100110100010010 (21 bits)
Octal 0o7546422
Hexadecimal 0x1ECD12

Divisor Catalog (4)

1 2 1,009,289 2,018,578

Collatz Trajectory (197 steps to reach 1)

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

2,018,578 1,009,289 3,027,868 1,513,934 756,967 2,270,902 1,135,451 3,406,354 1,703,177 5,109,532 2,554,766 1,277,383 3,832,150 1,916,075 5,748,226 2,874,113 8,622,340 4,311,170 2,155,585 6,466,756 3,233,378 1,616,689 4,850,068 2,425,034 1,212,517 3,637,552 1,818,776 909,388 454,694 227,347 682,042 341,021 1,023,064 511,532 255,766 127,883 383,650 191,825 575,476 287,738 143,869 431,608 215,804 107,902 53,951 161,854 80,927 242,782 121,391 364,174 182,087 546,262 273,131 819,394 409,697 1,229,092 614,546 307,273 921,820 460,910

More profiles

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