4,161,091

11 × 23 × 16447

Starting at 4,161,091, the Collatz iteration reaches 1 after 159 steps. The first transition is 12483274; the starting value is odd with 8 positive divisors.

Prime Factor Structure

Factorization String 11 × 23 × 16447

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 4,737,024

Proper Divisor Sum 575,933

Digit Sum / Digital Root 22 (Root: 4)

Adjacent Primes #4161077 ← → #4161103

Radix Representation

Decimal	4161091
Binary	1111110111111001000011 (22 bits)
Octal	0o17677103
Hexadecimal	0x3F7E43

Divisor Catalog (8)

1 11 23 253 16,447 180,917 378,281 4,161,091

Collatz Trajectory (159 steps to reach 1)

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

4,161,091 12,483,274 6,241,637 18,724,912 9,362,456 4,681,228 2,340,614 1,170,307 3,510,922 1,755,461 5,266,384 2,633,192 1,316,596 658,298 329,149 987,448 493,724 246,862 123,431 370,294 185,147 555,442 277,721 833,164 416,582 208,291 624,874 312,437 937,312 468,656 234,328 117,164 58,582 29,291 87,874 43,937 131,812 65,906 32,953 98,860 49,430 24,715 74,146 37,073 111,220 55,610 27,805 83,416 41,708 20,854 10,427 31,282 15,641 46,924 23,462 11,731 35,194 17,597 52,792 26,396

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