λ
Sequence Observatory

8,043,505

5 × 73 × 22037
Deficient Odd Composite

Starting at 8,043,505, the Collatz iteration reaches 1 after 67 steps. The first transition is 24130516; the starting value is odd with 8 positive divisors.

Prime Factor Structure

Factorization String 5 × 73 × 22037
Distinct Prime Factors 3
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 8
Divisor Sum (σ) 9,784,872
Proper Divisor Sum 1,741,367
Digit Sum / Digital Root 25 (Root: 7)
Adjacent Primes #8043487 ← → #8043557

Radix Representation

Decimal 8043505
Binary 11110101011101111110001 (23 bits)
Octal 0o36535761
Hexadecimal 0x7ABBF1

Divisor Catalog (8)

1 5 73 365 22,037 110,185 1,608,701 8,043,505

Collatz Trajectory (67 steps to reach 1)

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

8,043,505 24,130,516 12,065,258 6,032,629 18,097,888 9,048,944 4,524,472 2,262,236 1,131,118 565,559 1,696,678 848,339 2,545,018 1,272,509 3,817,528 1,908,764 954,382 477,191 1,431,574 715,787 2,147,362 1,073,681 3,221,044 1,610,522 805,261 2,415,784 1,207,892 603,946 301,973 905,920 452,960 226,480 113,240 56,620 28,310 14,155 42,466 21,233 63,700 31,850 15,925 47,776 23,888 11,944 5,972 2,986 1,493 4,480 2,240 1,120 560 280 140 70 35 106 53 160 80 40

More profiles

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