λ
Sequence Observatory

6,739,549

6739549
Deficient Odd Prime

Starting at 6,739,549, the Collatz iteration reaches 1 after 85 steps. The first transition is 20218648; the starting value is odd with 2 positive divisors.

Prime Factor Structure

Factorization String 6739549
Distinct Prime Factors 1
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 2
Divisor Sum (σ) 6,739,550
Proper Divisor Sum 1
Digit Sum / Digital Root 43 (Root: 7)
Adjacent Primes #6739543 ← → #6739559

Radix Representation

Decimal 6739549
Binary 11001101101011001011101 (23 bits)
Octal 0o31553135
Hexadecimal 0x66D65D

Divisor Catalog (2)

Collatz Trajectory (85 steps to reach 1)

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

6,739,549 20,218,648 10,109,324 5,054,662 2,527,331 7,581,994 3,790,997 11,372,992 5,686,496 2,843,248 1,421,624 710,812 355,406 177,703 533,110 266,555 799,666 399,833 1,199,500 599,750 299,875 899,626 449,813 1,349,440 674,720 337,360 168,680 84,340 42,170 21,085 63,256 31,628 15,814 7,907 23,722 11,861 35,584 17,792 8,896 4,448 2,224 1,112 556 278 139 418 209 628 314 157 472 236 118 59 178 89 268 134 67 202

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