λ
Sequence Observatory

903,091

7 × 17 × 7589
Deficient Odd Composite

Starting at 903,091, the Collatz iteration reaches 1 after 64 steps. The first transition is 2709274; the starting value is odd with 8 positive divisors.

Prime Factor Structure

Factorization String 7 × 17 × 7589
Distinct Prime Factors 3
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 8
Divisor Sum (σ) 1,092,960
Proper Divisor Sum 189,869
Digit Sum / Digital Root 22 (Root: 4)
Adjacent Primes #903079 ← → #903103

Radix Representation

Decimal 903091
Binary 11011100011110110011 (20 bits)
Octal 0o3343663
Hexadecimal 0xDC7B3

Divisor Catalog (8)

1 7 17 119 7,589 53,123 129,013 903,091

Collatz Trajectory (64 steps to reach 1)

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

903,091 2,709,274 1,354,637 4,063,912 2,031,956 1,015,978 507,989 1,523,968 761,984 380,992 190,496 95,248 47,624 23,812 11,906 5,953 17,860 8,930 4,465 13,396 6,698 3,349 10,048 5,024 2,512 1,256 628 314 157 472 236 118 59 178 89 268 134 67 202 101 304 152 76 38 19 58 29 88 44 22 11 34 17 52 26 13 40 20 10 5

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