6,656,885

5 × 1331377

Starting at 6,656,885, the Collatz iteration reaches 1 after 165 steps. The first transition is 19970656; the starting value is odd with 4 positive divisors.

Prime Factor Structure

Factorization String 5 × 1331377

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 7,988,268

Proper Divisor Sum 1,331,383

Digit Sum / Digital Root 44 (Root: 8)

Adjacent Primes #6656879 ← → #6656887

Radix Representation

Decimal	6656885
Binary	11001011001001101110101 (23 bits)
Octal	0o31311565
Hexadecimal	0x659375

Divisor Catalog (4)

1 5 1,331,377 6,656,885

Collatz Trajectory (165 steps to reach 1)

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

6,656,885 19,970,656 9,985,328 4,992,664 2,496,332 1,248,166 624,083 1,872,250 936,125 2,808,376 1,404,188 702,094 351,047 1,053,142 526,571 1,579,714 789,857 2,369,572 1,184,786 592,393 1,777,180 888,590 444,295 1,332,886 666,443 1,999,330 999,665 2,998,996 1,499,498 749,749 2,249,248 1,124,624 562,312 281,156 140,578 70,289 210,868 105,434 52,717 158,152 79,076 39,538 19,769 59,308 29,654 14,827 44,482 22,241 66,724 33,362 16,681 50,044 25,022 12,511 37,534 18,767 56,302 28,151 84,454 42,227

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