λ
Sequence Observatory

7,702,657

193 × 1123
Deficient Odd Composite

Starting at 7,702,657, the Collatz iteration reaches 1 after 124 steps. The first transition is 23107972; the starting value is odd with 8 positive divisors.

Prime Factor Structure

Factorization String 19^3 × 1123
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 8
Divisor Sum (σ) 8,137,760
Proper Divisor Sum 435,103
Digit Sum / Digital Root 34 (Root: 7)
Adjacent Primes #7702573 ← → #7702687

Radix Representation

Decimal 7702657
Binary 11101011000100010000001 (23 bits)
Octal 0o35304201
Hexadecimal 0x758881

Divisor Catalog (8)

1 19 361 1,123 6,859 21,337 405,403 7,702,657

Collatz Trajectory (124 steps to reach 1)

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

7,702,657 23,107,972 11,553,986 5,776,993 17,330,980 8,665,490 4,332,745 12,998,236 6,499,118 3,249,559 9,748,678 4,874,339 14,623,018 7,311,509 21,934,528 10,967,264 5,483,632 2,741,816 1,370,908 685,454 342,727 1,028,182 514,091 1,542,274 771,137 2,313,412 1,156,706 578,353 1,735,060 867,530 433,765 1,301,296 650,648 325,324 162,662 81,331 243,994 121,997 365,992 182,996 91,498 45,749 137,248 68,624 34,312 17,156 8,578 4,289 12,868 6,434 3,217 9,652 4,826 2,413 7,240 3,620 1,810 905 2,716 1,358

More profiles

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