λ
Sequence Observatory

5,266,519

5266519
Deficient Odd Prime

Starting at 5,266,519, the Collatz iteration reaches 1 after 144 steps. The first transition is 15799558; the starting value is odd with 2 positive divisors.

Prime Factor Structure

Factorization String 5266519
Distinct Prime Factors 1
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 2
Divisor Sum (σ) 5,266,520
Proper Divisor Sum 1
Digit Sum / Digital Root 34 (Root: 7)
Adjacent Primes #5266507 ← → #5266531

Radix Representation

Decimal 5266519
Binary 10100000101110001010111 (23 bits)
Octal 0o24056127
Hexadecimal 0x505C57

Divisor Catalog (2)

Collatz Trajectory (144 steps to reach 1)

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

5,266,519 15,799,558 7,899,779 23,699,338 11,849,669 35,549,008 17,774,504 8,887,252 4,443,626 2,221,813 6,665,440 3,332,720 1,666,360 833,180 416,590 208,295 624,886 312,443 937,330 468,665 1,405,996 702,998 351,499 1,054,498 527,249 1,581,748 790,874 395,437 1,186,312 593,156 296,578 148,289 444,868 222,434 111,217 333,652 166,826 83,413 250,240 125,120 62,560 31,280 15,640 7,820 3,910 1,955 5,866 2,933 8,800 4,400 2,200 1,100 550 275 826 413 1,240 620 310 155

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