3,561,146

2 × 1780573

Starting at 3,561,146, the Collatz iteration reaches 1 after 97 steps. The first transition is 1780573; the starting value is even with 4 positive divisors.

Prime Factor Structure

Factorization String 2 × 1780573

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 5,341,722

Proper Divisor Sum 1,780,576

Digit Sum / Digital Root 26 (Root: 8)

Adjacent Primes #3561133 ← → #3561149

Radix Representation

Decimal	3561146
Binary	1101100101011010111010 (22 bits)
Octal	0o15453272
Hexadecimal	0x3656BA

Divisor Catalog (4)

1 2 1,780,573 3,561,146

Collatz Trajectory (97 steps to reach 1)

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

3,561,146 1,780,573 5,341,720 2,670,860 1,335,430 667,715 2,003,146 1,001,573 3,004,720 1,502,360 751,180 375,590 187,795 563,386 281,693 845,080 422,540 211,270 105,635 316,906 158,453 475,360 237,680 118,840 59,420 29,710 14,855 44,566 22,283 66,850 33,425 100,276 50,138 25,069 75,208 37,604 18,802 9,401 28,204 14,102 7,051 21,154 10,577 31,732 15,866 7,933 23,800 11,900 5,950 2,975 8,926 4,463 13,390 6,695 20,086 10,043 30,130 15,065 45,196 22,598

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