λ
Sequence Observatory

7,985,411

7 × 29 × 139 × 283
Deficient Odd Composite

Starting at 7,985,411, the Collatz iteration reaches 1 after 168 steps. The first transition is 23956234; the starting value is odd with 16 positive divisors.

Prime Factor Structure

Factorization String 7 × 29 × 139 × 283
Distinct Prime Factors 4
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 16
Divisor Sum (σ) 9,542,400
Proper Divisor Sum 1,556,989
Digit Sum / Digital Root 35 (Root: 8)
Adjacent Primes #7985389 ← → #7985413

Radix Representation

Decimal 7985411
Binary 11110011101100100000011 (23 bits)
Octal 0o36354403
Hexadecimal 0x79D903

Divisor Catalog (16)

1 7 29 139 203 283 973 1,981 4,031 8,207 28,217 39,337 57,449 275,359 1,140,773 7,985,411

Collatz Trajectory (168 steps to reach 1)

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

7,985,411 23,956,234 11,978,117 35,934,352 17,967,176 8,983,588 4,491,794 2,245,897 6,737,692 3,368,846 1,684,423 5,053,270 2,526,635 7,579,906 3,789,953 11,369,860 5,684,930 2,842,465 8,527,396 4,263,698 2,131,849 6,395,548 3,197,774 1,598,887 4,796,662 2,398,331 7,194,994 3,597,497 10,792,492 5,396,246 2,698,123 8,094,370 4,047,185 12,141,556 6,070,778 3,035,389 9,106,168 4,553,084 2,276,542 1,138,271 3,414,814 1,707,407 5,122,222 2,561,111 7,683,334 3,841,667 11,525,002 5,762,501 17,287,504 8,643,752 4,321,876 2,160,938 1,080,469 3,241,408 1,620,704 810,352 405,176 202,588 101,294 50,647

More profiles

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