1,966,686

2 × 3 × 433 × 757

Starting at 1,966,686, the Collatz iteration reaches 1 after 145 steps. The first transition is 983343; the starting value is even with 16 positive divisors.

Prime Factor Structure

Factorization String 2 × 3 × 433 × 757

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 3,947,664

Proper Divisor Sum 1,980,978

Digit Sum / Digital Root 42 (Root: 6)

Adjacent Primes #1966681 ← → #1966697

Radix Representation

Decimal	1966686
Binary	111100000001001011110 (21 bits)
Octal	0o7401136
Hexadecimal	0x1E025E

Divisor Catalog (16)

1 2 3 6 433 757 866 1,299 1,514 2,271 2,598 4,542 327,781 655,562 983,343 1,966,686

Collatz Trajectory (145 steps to reach 1)

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

1,966,686 983,343 2,950,030 1,475,015 4,425,046 2,212,523 6,637,570 3,318,785 9,956,356 4,978,178 2,489,089 7,467,268 3,733,634 1,866,817 5,600,452 2,800,226 1,400,113 4,200,340 2,100,170 1,050,085 3,150,256 1,575,128 787,564 393,782 196,891 590,674 295,337 886,012 443,006 221,503 664,510 332,255 996,766 498,383 1,495,150 747,575 2,242,726 1,121,363 3,364,090 1,682,045 5,046,136 2,523,068 1,261,534 630,767 1,892,302 946,151 2,838,454 1,419,227 4,257,682 2,128,841 6,386,524 3,193,262 1,596,631 4,789,894 2,394,947 7,184,842 3,592,421 10,777,264 5,388,632 2,694,316

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