λ
Sequence Observatory

2,703,821

547 × 4943
Deficient Odd Composite

Starting at 2,703,821, the Collatz iteration reaches 1 after 112 steps. The first transition is 8111464; the starting value is odd with 4 positive divisors.

Prime Factor Structure

Factorization String 547 × 4943
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 4
Divisor Sum (σ) 2,709,312
Proper Divisor Sum 5,491
Digit Sum / Digital Root 23 (Root: 5)
Adjacent Primes #2703809 ← → #2703829

Radix Representation

Decimal 2703821
Binary 1010010100000111001101 (22 bits)
Octal 0o12240715
Hexadecimal 0x2941CD

Divisor Catalog (4)

1 547 4,943 2,703,821

Collatz Trajectory (112 steps to reach 1)

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

2,703,821 8,111,464 4,055,732 2,027,866 1,013,933 3,041,800 1,520,900 760,450 380,225 1,140,676 570,338 285,169 855,508 427,754 213,877 641,632 320,816 160,408 80,204 40,102 20,051 60,154 30,077 90,232 45,116 22,558 11,279 33,838 16,919 50,758 25,379 76,138 38,069 114,208 57,104 28,552 14,276 7,138 3,569 10,708 5,354 2,677 8,032 4,016 2,008 1,004 502 251 754 377 1,132 566 283 850 425 1,276 638 319 958 479

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