6,663,260

2² × 5 × 431 × 773

Starting at 6,663,260, the Collatz iteration reaches 1 after 134 steps. The first transition is 3331630; the starting value is even with 24 positive divisors.

Prime Factor Structure

Factorization String 2^2 × 5 × 431 × 773

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 14,043,456

Proper Divisor Sum 7,380,196

Digit Sum / Digital Root 29 (Root: 2)

Adjacent Primes #6663257 ← → #6663289

Radix Representation

Decimal	6663260
Binary	11001011010110001011100 (23 bits)
Octal	0o31326134
Hexadecimal	0x65AC5C

Divisor Catalog (24)

1 2 4 5 10 20 431 773 862 1,546 1,724 2,155 3,092 3,865 4,310 7,730 8,620 15,460 333,163 666,326 1,332,652 1,665,815 3,331,630 6,663,260

Collatz Trajectory (134 steps to reach 1)

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

6,663,260 3,331,630 1,665,815 4,997,446 2,498,723 7,496,170 3,748,085 11,244,256 5,622,128 2,811,064 1,405,532 702,766 351,383 1,054,150 527,075 1,581,226 790,613 2,371,840 1,185,920 592,960 296,480 148,240 74,120 37,060 18,530 9,265 27,796 13,898 6,949 20,848 10,424 5,212 2,606 1,303 3,910 1,955 5,866 2,933 8,800 4,400 2,200 1,100 550 275 826 413 1,240 620 310 155 466 233 700 350 175 526 263 790 395 1,186

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