λ
Sequence Observatory

7,486,846

2 × 41 × 91303
Deficient Even Composite

Starting at 7,486,846, the Collatz iteration reaches 1 after 160 steps. The first transition is 3743423; the starting value is even with 8 positive divisors.

Prime Factor Structure

Factorization String 2 × 41 × 91303
Distinct Prime Factors 3
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 8
Divisor Sum (σ) 11,504,304
Proper Divisor Sum 4,017,458
Digit Sum / Digital Root 43 (Root: 7)
Adjacent Primes #7486823 ← → #7486847

Radix Representation

Decimal 7486846
Binary 11100100011110101111110 (23 bits)
Octal 0o34436576
Hexadecimal 0x723D7E

Divisor Catalog (8)

1 2 41 82 91,303 182,606 3,743,423 7,486,846

Collatz Trajectory (160 steps to reach 1)

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

7,486,846 3,743,423 11,230,270 5,615,135 16,845,406 8,422,703 25,268,110 12,634,055 37,902,166 18,951,083 56,853,250 28,426,625 85,279,876 42,639,938 21,319,969 63,959,908 31,979,954 15,989,977 47,969,932 23,984,966 11,992,483 35,977,450 17,988,725 53,966,176 26,983,088 13,491,544 6,745,772 3,372,886 1,686,443 5,059,330 2,529,665 7,588,996 3,794,498 1,897,249 5,691,748 2,845,874 1,422,937 4,268,812 2,134,406 1,067,203 3,201,610 1,600,805 4,802,416 2,401,208 1,200,604 600,302 300,151 900,454 450,227 1,350,682 675,341 2,026,024 1,013,012 506,506 253,253 759,760 379,880 189,940 94,970 47,485

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