λ
Sequence Observatory

5,520,019

17 × 324707
Deficient Odd Composite

Starting at 5,520,019, the Collatz iteration reaches 1 after 263 steps. The first transition is 16560058; the starting value is odd with 4 positive divisors.

Prime Factor Structure

Factorization String 17 × 324707
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 4
Divisor Sum (σ) 5,844,744
Proper Divisor Sum 324,725
Digit Sum / Digital Root 22 (Root: 4)
Adjacent Primes #5520017 ← → #5520029

Radix Representation

Decimal 5520019
Binary 10101000011101010010011 (23 bits)
Octal 0o25035223
Hexadecimal 0x543A93

Divisor Catalog (4)

1 17 324,707 5,520,019

Collatz Trajectory (263 steps to reach 1)

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

5,520,019 16,560,058 8,280,029 24,840,088 12,420,044 6,210,022 3,105,011 9,315,034 4,657,517 13,972,552 6,986,276 3,493,138 1,746,569 5,239,708 2,619,854 1,309,927 3,929,782 1,964,891 5,894,674 2,947,337 8,842,012 4,421,006 2,210,503 6,631,510 3,315,755 9,947,266 4,973,633 14,920,900 7,460,450 3,730,225 11,190,676 5,595,338 2,797,669 8,393,008 4,196,504 2,098,252 1,049,126 524,563 1,573,690 786,845 2,360,536 1,180,268 590,134 295,067 885,202 442,601 1,327,804 663,902 331,951 995,854 497,927 1,493,782 746,891 2,240,674 1,120,337 3,361,012 1,680,506 840,253 2,520,760 1,260,380

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