λ
Sequence Observatory

1,919,067

3 × 639689
Deficient Odd Composite

Starting at 1,919,067, the Collatz iteration reaches 1 after 109 steps. The first transition is 5757202; the starting value is odd with 4 positive divisors.

Prime Factor Structure

Factorization String 3 × 639689
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 4
Divisor Sum (σ) 2,558,760
Proper Divisor Sum 639,693
Digit Sum / Digital Root 33 (Root: 6)
Adjacent Primes #1919063 ← → #1919119

Radix Representation

Decimal 1919067
Binary 111010100100001011011 (21 bits)
Octal 0o7244133
Hexadecimal 0x1D485B

Divisor Catalog (4)

1 3 639,689 1,919,067

Collatz Trajectory (109 steps to reach 1)

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

1,919,067 5,757,202 2,878,601 8,635,804 4,317,902 2,158,951 6,476,854 3,238,427 9,715,282 4,857,641 14,572,924 7,286,462 3,643,231 10,929,694 5,464,847 16,394,542 8,197,271 24,591,814 12,295,907 36,887,722 18,443,861 55,331,584 27,665,792 13,832,896 6,916,448 3,458,224 1,729,112 864,556 432,278 216,139 648,418 324,209 972,628 486,314 243,157 729,472 364,736 182,368 91,184 45,592 22,796 11,398 5,699 17,098 8,549 25,648 12,824 6,412 3,206 1,603 4,810 2,405 7,216 3,608 1,804 902 451 1,354 677 2,032

More profiles

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