λ
Sequence Observatory

8,145,347

7 × 41 × 101 × 281
Deficient Odd Composite

Starting at 8,145,347, the Collatz iteration reaches 1 after 230 steps. The first transition is 24436042; the starting value is odd with 16 positive divisors.

Prime Factor Structure

Factorization String 7 × 41 × 101 × 281
Distinct Prime Factors 4
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 16
Divisor Sum (σ) 9,664,704
Proper Divisor Sum 1,519,357
Digit Sum / Digital Root 32 (Root: 5)
Adjacent Primes #8145337 ← → #8145349

Radix Representation

Decimal 8145347
Binary 11111000100100111000011 (23 bits)
Octal 0o37044703
Hexadecimal 0x7C49C3

Divisor Catalog (16)

1 7 41 101 281 287 707 1,967 4,141 11,521 28,381 28,987 80,647 198,667 1,163,621 8,145,347

Collatz Trajectory (230 steps to reach 1)

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

8,145,347 24,436,042 12,218,021 36,654,064 18,327,032 9,163,516 4,581,758 2,290,879 6,872,638 3,436,319 10,308,958 5,154,479 15,463,438 7,731,719 23,195,158 11,597,579 34,792,738 17,396,369 52,189,108 26,094,554 13,047,277 39,141,832 19,570,916 9,785,458 4,892,729 14,678,188 7,339,094 3,669,547 11,008,642 5,504,321 16,512,964 8,256,482 4,128,241 12,384,724 6,192,362 3,096,181 9,288,544 4,644,272 2,322,136 1,161,068 580,534 290,267 870,802 435,401 1,306,204 653,102 326,551 979,654 489,827 1,469,482 734,741 2,204,224 1,102,112 551,056 275,528 137,764 68,882 34,441 103,324 51,662

More profiles

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