λ
Sequence Observatory

7,929,991

347 × 22853
Deficient Odd Composite

Starting at 7,929,991, the Collatz iteration reaches 1 after 199 steps. The first transition is 23789974; the starting value is odd with 4 positive divisors.

Prime Factor Structure

Factorization String 347 × 22853
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 4
Divisor Sum (σ) 7,953,192
Proper Divisor Sum 23,201
Digit Sum / Digital Root 46 (Root: 1)
Adjacent Primes #7929983 ← → #7929997

Radix Representation

Decimal 7929991
Binary 11110010000000010000111 (23 bits)
Octal 0o36200207
Hexadecimal 0x790087

Divisor Catalog (4)

1 347 22,853 7,929,991

Collatz Trajectory (199 steps to reach 1)

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

7,929,991 23,789,974 11,894,987 35,684,962 17,842,481 53,527,444 26,763,722 13,381,861 40,145,584 20,072,792 10,036,396 5,018,198 2,509,099 7,527,298 3,763,649 11,290,948 5,645,474 2,822,737 8,468,212 4,234,106 2,117,053 6,351,160 3,175,580 1,587,790 793,895 2,381,686 1,190,843 3,572,530 1,786,265 5,358,796 2,679,398 1,339,699 4,019,098 2,009,549 6,028,648 3,014,324 1,507,162 753,581 2,260,744 1,130,372 565,186 282,593 847,780 423,890 211,945 635,836 317,918 158,959 476,878 238,439 715,318 357,659 1,072,978 536,489 1,609,468 804,734 402,367 1,207,102 603,551 1,810,654

More profiles

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