λ
Sequence Observatory

8,565,850

2 × 52 × 171317
Deficient Even Composite

Starting at 8,565,850, the Collatz iteration reaches 1 after 168 steps. The first transition is 4282925; the starting value is even with 12 positive divisors.

Prime Factor Structure

Factorization String 2 × 5^2 × 171317
Distinct Prime Factors 3
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 12
Divisor Sum (σ) 15,932,574
Proper Divisor Sum 7,366,724
Digit Sum / Digital Root 37 (Root: 1)
Adjacent Primes #8565847 ← → #8565853

Radix Representation

Decimal 8565850
Binary 100000101011010001011010 (24 bits)
Octal 0o40532132
Hexadecimal 0x82B45A

Divisor Catalog (12)

1 2 5 10 25 50 171,317 342,634 856,585 1,713,170 4,282,925 8,565,850

Collatz Trajectory (168 steps to reach 1)

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

8,565,850 4,282,925 12,848,776 6,424,388 3,212,194 1,606,097 4,818,292 2,409,146 1,204,573 3,613,720 1,806,860 903,430 451,715 1,355,146 677,573 2,032,720 1,016,360 508,180 254,090 127,045 381,136 190,568 95,284 47,642 23,821 71,464 35,732 17,866 8,933 26,800 13,400 6,700 3,350 1,675 5,026 2,513 7,540 3,770 1,885 5,656 2,828 1,414 707 2,122 1,061 3,184 1,592 796 398 199 598 299 898 449 1,348 674 337 1,012 506 253

More profiles

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