1,845,981

3² × 443 × 463

Starting at 1,845,981, the Collatz iteration reaches 1 after 158 steps. The first transition is 5537944; the starting value is odd with 12 positive divisors.

Prime Factor Structure

Factorization String 3^2 × 443 × 463

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 2,678,208

Proper Divisor Sum 832,227

Digit Sum / Digital Root 36 (Root: 9)

Adjacent Primes #1845959 ← → #1846001

Radix Representation

Decimal	1845981
Binary	111000010101011011101 (21 bits)
Octal	0o7025335
Hexadecimal	0x1C2ADD

Divisor Catalog (12)

1 3 9 443 463 1,329 1,389 3,987 4,167 205,109 615,327 1,845,981

Collatz Trajectory (158 steps to reach 1)

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

1,845,981 5,537,944 2,768,972 1,384,486 692,243 2,076,730 1,038,365 3,115,096 1,557,548 778,774 389,387 1,168,162 584,081 1,752,244 876,122 438,061 1,314,184 657,092 328,546 164,273 492,820 246,410 123,205 369,616 184,808 92,404 46,202 23,101 69,304 34,652 17,326 8,663 25,990 12,995 38,986 19,493 58,480 29,240 14,620 7,310 3,655 10,966 5,483 16,450 8,225 24,676 12,338 6,169 18,508 9,254 4,627 13,882 6,941 20,824 10,412 5,206 2,603 7,810 3,905 11,716

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