λ
Sequence Observatory

7,196,649

3 × 19 × 126257
Deficient Odd Composite

Starting at 7,196,649, the Collatz iteration reaches 1 after 173 steps. The first transition is 21589948; the starting value is odd with 8 positive divisors.

Prime Factor Structure

Factorization String 3 × 19 × 126257
Distinct Prime Factors 3
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 8
Divisor Sum (σ) 10,100,640
Proper Divisor Sum 2,903,991
Digit Sum / Digital Root 42 (Root: 6)
Adjacent Primes #7196647 ← → #7196653

Radix Representation

Decimal 7196649
Binary 11011011100111111101001 (23 bits)
Octal 0o33347751
Hexadecimal 0x6DCFE9

Divisor Catalog (8)

1 3 19 57 126,257 378,771 2,398,883 7,196,649

Collatz Trajectory (173 steps to reach 1)

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

7,196,649 21,589,948 10,794,974 5,397,487 16,192,462 8,096,231 24,288,694 12,144,347 36,433,042 18,216,521 54,649,564 27,324,782 13,662,391 40,987,174 20,493,587 61,480,762 30,740,381 92,221,144 46,110,572 23,055,286 11,527,643 34,582,930 17,291,465 51,874,396 25,937,198 12,968,599 38,905,798 19,452,899 58,358,698 29,179,349 87,538,048 43,769,024 21,884,512 10,942,256 5,471,128 2,735,564 1,367,782 683,891 2,051,674 1,025,837 3,077,512 1,538,756 769,378 384,689 1,154,068 577,034 288,517 865,552 432,776 216,388 108,194 54,097 162,292 81,146 40,573 121,720 60,860 30,430 15,215 45,646

More profiles

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