4,169,989

353 × 11813

Starting at 4,169,989, the Collatz iteration reaches 1 after 110 steps. The first transition is 12509968; the starting value is odd with 4 positive divisors.

Prime Factor Structure

Factorization String 353 × 11813

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 4,182,156

Proper Divisor Sum 12,167

Digit Sum / Digital Root 46 (Root: 1)

Adjacent Primes #4169953 ← → #4170007

Radix Representation

Decimal	4169989
Binary	1111111010000100000101 (22 bits)
Octal	0o17720405
Hexadecimal	0x3FA105

Divisor Catalog (4)

1 353 11,813 4,169,989

Collatz Trajectory (110 steps to reach 1)

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

4,169,989 12,509,968 6,254,984 3,127,492 1,563,746 781,873 2,345,620 1,172,810 586,405 1,759,216 879,608 439,804 219,902 109,951 329,854 164,927 494,782 247,391 742,174 371,087 1,113,262 556,631 1,669,894 834,947 2,504,842 1,252,421 3,757,264 1,878,632 939,316 469,658 234,829 704,488 352,244 176,122 88,061 264,184 132,092 66,046 33,023 99,070 49,535 148,606 74,303 222,910 111,455 334,366 167,183 501,550 250,775 752,326 376,163 1,128,490 564,245 1,692,736 846,368 423,184 211,592 105,796 52,898 26,449

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