1,785,641

11 × 13 × 12487

Starting at 1,785,641, the Collatz iteration reaches 1 after 264 steps. The first transition is 5356924; the starting value is odd with 8 positive divisors.

Prime Factor Structure

Factorization String 11 × 13 × 12487

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 2,097,984

Proper Divisor Sum 312,343

Digit Sum / Digital Root 32 (Root: 5)

Adjacent Primes #1785613 ← → #1785643

Radix Representation

Decimal	1785641
Binary	110110011111100101001 (21 bits)
Octal	0o6637451
Hexadecimal	0x1B3F29

Divisor Catalog (8)

1 11 13 143 12,487 137,357 162,331 1,785,641

Collatz Trajectory (264 steps to reach 1)

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

1,785,641 5,356,924 2,678,462 1,339,231 4,017,694 2,008,847 6,026,542 3,013,271 9,039,814 4,519,907 13,559,722 6,779,861 20,339,584 10,169,792 5,084,896 2,542,448 1,271,224 635,612 317,806 158,903 476,710 238,355 715,066 357,533 1,072,600 536,300 268,150 134,075 402,226 201,113 603,340 301,670 150,835 452,506 226,253 678,760 339,380 169,690 84,845 254,536 127,268 63,634 31,817 95,452 47,726 23,863 71,590 35,795 107,386 53,693 161,080 80,540 40,270 20,135 60,406 30,203 90,610 45,305 135,916 67,958

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