1,804,913

11 × 31 × 67 × 79

Starting at 1,804,913, the Collatz iteration reaches 1 after 140 steps. The first transition is 5414740; the starting value is odd with 16 positive divisors.

Prime Factor Structure

Factorization String 11 × 31 × 67 × 79

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 2,088,960

Proper Divisor Sum 284,047

Digit Sum / Digital Root 26 (Root: 8)

Adjacent Primes #1804871 ← → #1804919

Radix Representation

Decimal	1804913
Binary	110111000101001110001 (21 bits)
Octal	0o6705161
Hexadecimal	0x1B8A71

Divisor Catalog (16)

1 11 31 67 79 341 737 869 2,077 2,449 5,293 22,847 26,939 58,223 164,083 1,804,913

Collatz Trajectory (140 steps to reach 1)

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

1,804,913 5,414,740 2,707,370 1,353,685 4,061,056 2,030,528 1,015,264 507,632 253,816 126,908 63,454 31,727 95,182 47,591 142,774 71,387 214,162 107,081 321,244 160,622 80,311 240,934 120,467 361,402 180,701 542,104 271,052 135,526 67,763 203,290 101,645 304,936 152,468 76,234 38,117 114,352 57,176 28,588 14,294 7,147 21,442 10,721 32,164 16,082 8,041 24,124 12,062 6,031 18,094 9,047 27,142 13,571 40,714 20,357 61,072 30,536 15,268 7,634 3,817 11,452

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