6,387,253

47 × 135899

Starting at 6,387,253, the Collatz iteration reaches 1 after 209 steps. The first transition is 19161760; the starting value is odd with 4 positive divisors.

Prime Factor Structure

Factorization String 47 × 135899

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 6,523,200

Proper Divisor Sum 135,947

Digit Sum / Digital Root 34 (Root: 7)

Adjacent Primes #6387217 ← → #6387259

Radix Representation

Decimal	6387253
Binary	11000010111011000110101 (23 bits)
Octal	0o30273065
Hexadecimal	0x617635

Divisor Catalog (4)

1 47 135,899 6,387,253

Collatz Trajectory (209 steps to reach 1)

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

6,387,253 19,161,760 9,580,880 4,790,440 2,395,220 1,197,610 598,805 1,796,416 898,208 449,104 224,552 112,276 56,138 28,069 84,208 42,104 21,052 10,526 5,263 15,790 7,895 23,686 11,843 35,530 17,765 53,296 26,648 13,324 6,662 3,331 9,994 4,997 14,992 7,496 3,748 1,874 937 2,812 1,406 703 2,110 1,055 3,166 1,583 4,750 2,375 7,126 3,563 10,690 5,345 16,036 8,018 4,009 12,028 6,014 3,007 9,022 4,511 13,534 6,767

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