λ
Sequence Observatory

7,285,309

107 × 68087
Deficient Odd Composite

Starting at 7,285,309, the Collatz iteration reaches 1 after 222 steps. The first transition is 21855928; the starting value is odd with 4 positive divisors.

Prime Factor Structure

Factorization String 107 × 68087
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 4
Divisor Sum (σ) 7,353,504
Proper Divisor Sum 68,195
Digit Sum / Digital Root 34 (Root: 7)
Adjacent Primes #7285283 ← → #7285339

Radix Representation

Decimal 7285309
Binary 11011110010101000111101 (23 bits)
Octal 0o33625075
Hexadecimal 0x6F2A3D

Divisor Catalog (4)

1 107 68,087 7,285,309

Collatz Trajectory (222 steps to reach 1)

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

7,285,309 21,855,928 10,927,964 5,463,982 2,731,991 8,195,974 4,097,987 12,293,962 6,146,981 18,440,944 9,220,472 4,610,236 2,305,118 1,152,559 3,457,678 1,728,839 5,186,518 2,593,259 7,779,778 3,889,889 11,669,668 5,834,834 2,917,417 8,752,252 4,376,126 2,188,063 6,564,190 3,282,095 9,846,286 4,923,143 14,769,430 7,384,715 22,154,146 11,077,073 33,231,220 16,615,610 8,307,805 24,923,416 12,461,708 6,230,854 3,115,427 9,346,282 4,673,141 14,019,424 7,009,712 3,504,856 1,752,428 876,214 438,107 1,314,322 657,161 1,971,484 985,742 492,871 1,478,614 739,307 2,217,922 1,108,961 3,326,884 1,663,442

More profiles

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