1,819,161

3² × 202129

Starting at 1,819,161, the Collatz iteration reaches 1 after 96 steps. The first transition is 5457484; the starting value is odd with 6 positive divisors.

Prime Factor Structure

Factorization String 3^2 × 202129

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 6

Divisor Sum (σ) 2,627,690

Proper Divisor Sum 808,529

Digit Sum / Digital Root 27 (Root: 9)

Adjacent Primes #1819157 ← → #1819183

Radix Representation

Decimal	1819161
Binary	110111100001000011001 (21 bits)
Octal	0o6741031
Hexadecimal	0x1BC219

Divisor Catalog (6)

1 3 9 202,129 606,387 1,819,161

Collatz Trajectory (96 steps to reach 1)

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

1,819,161 5,457,484 2,728,742 1,364,371 4,093,114 2,046,557 6,139,672 3,069,836 1,534,918 767,459 2,302,378 1,151,189 3,453,568 1,726,784 863,392 431,696 215,848 107,924 53,962 26,981 80,944 40,472 20,236 10,118 5,059 15,178 7,589 22,768 11,384 5,692 2,846 1,423 4,270 2,135 6,406 3,203 9,610 4,805 14,416 7,208 3,604 1,802 901 2,704 1,352 676 338 169 508 254 127 382 191 574 287 862 431 1,294 647 1,942

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