λ
Sequence Observatory

2,970,377

647 × 4591
Deficient Odd Composite

Starting at 2,970,377, the Collatz iteration reaches 1 after 213 steps. The first transition is 8911132; the starting value is odd with 4 positive divisors.

Prime Factor Structure

Factorization String 647 × 4591
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 4
Divisor Sum (σ) 2,975,616
Proper Divisor Sum 5,239
Digit Sum / Digital Root 35 (Root: 8)
Adjacent Primes #2970371 ← → #2970413

Radix Representation

Decimal 2970377
Binary 1011010101001100001001 (22 bits)
Octal 0o13251411
Hexadecimal 0x2D5309

Divisor Catalog (4)

1 647 4,591 2,970,377

Collatz Trajectory (213 steps to reach 1)

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

2,970,377 8,911,132 4,455,566 2,227,783 6,683,350 3,341,675 10,025,026 5,012,513 15,037,540 7,518,770 3,759,385 11,278,156 5,639,078 2,819,539 8,458,618 4,229,309 12,687,928 6,343,964 3,171,982 1,585,991 4,757,974 2,378,987 7,136,962 3,568,481 10,705,444 5,352,722 2,676,361 8,029,084 4,014,542 2,007,271 6,021,814 3,010,907 9,032,722 4,516,361 13,549,084 6,774,542 3,387,271 10,161,814 5,080,907 15,242,722 7,621,361 22,864,084 11,432,042 5,716,021 17,148,064 8,574,032 4,287,016 2,143,508 1,071,754 535,877 1,607,632 803,816 401,908 200,954 100,477 301,432 150,716 75,358 37,679 113,038

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