λ
Sequence Observatory

2,785,429

103 × 27043
Deficient Odd Composite

Starting at 2,785,429, the Collatz iteration reaches 1 after 76 steps. The first transition is 8356288; the starting value is odd with 4 positive divisors.

Prime Factor Structure

Factorization String 103 × 27043
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 4
Divisor Sum (σ) 2,812,576
Proper Divisor Sum 27,147
Digit Sum / Digital Root 37 (Root: 1)
Adjacent Primes #2785423 ← → #2785439

Radix Representation

Decimal 2785429
Binary 1010101000000010010101 (22 bits)
Octal 0o12500225
Hexadecimal 0x2A8095

Divisor Catalog (4)

1 103 27,043 2,785,429

Collatz Trajectory (76 steps to reach 1)

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

2,785,429 8,356,288 4,178,144 2,089,072 1,044,536 522,268 261,134 130,567 391,702 195,851 587,554 293,777 881,332 440,666 220,333 661,000 330,500 165,250 82,625 247,876 123,938 61,969 185,908 92,954 46,477 139,432 69,716 34,858 17,429 52,288 26,144 13,072 6,536 3,268 1,634 817 2,452 1,226 613 1,840 920 460 230 115 346 173 520 260 130 65 196 98 49 148 74 37 112 56 28 14

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