1,943,566

2 × 971783

Starting at 1,943,566, the Collatz iteration reaches 1 after 215 steps. The first transition is 971783; the starting value is even with 4 positive divisors.

Prime Factor Structure

Factorization String 2 × 971783

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 2,915,352

Proper Divisor Sum 971,786

Digit Sum / Digital Root 34 (Root: 7)

Adjacent Primes #1943561 ← → #1943587

Radix Representation

Decimal	1943566
Binary	111011010100000001110 (21 bits)
Octal	0o7324016
Hexadecimal	0x1DA80E

Divisor Catalog (4)

1 2 971,783 1,943,566

Collatz Trajectory (215 steps to reach 1)

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

1,943,566 971,783 2,915,350 1,457,675 4,373,026 2,186,513 6,559,540 3,279,770 1,639,885 4,919,656 2,459,828 1,229,914 614,957 1,844,872 922,436 461,218 230,609 691,828 345,914 172,957 518,872 259,436 129,718 64,859 194,578 97,289 291,868 145,934 72,967 218,902 109,451 328,354 164,177 492,532 246,266 123,133 369,400 184,700 92,350 46,175 138,526 69,263 207,790 103,895 311,686 155,843 467,530 233,765 701,296 350,648 175,324 87,662 43,831 131,494 65,747 197,242 98,621 295,864 147,932 73,966

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