λ
Sequence Observatory

862,361

151 × 5711
Deficient Odd Composite

Starting at 862,361, the Collatz iteration reaches 1 after 144 steps. The first transition is 2587084; the starting value is odd with 4 positive divisors.

Prime Factor Structure

Factorization String 151 × 5711
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 4
Divisor Sum (σ) 868,224
Proper Divisor Sum 5,863
Digit Sum / Digital Root 26 (Root: 8)
Adjacent Primes #862343 ← → #862369

Radix Representation

Decimal 862361
Binary 11010010100010011001 (20 bits)
Octal 0o3224231
Hexadecimal 0xD2899

Divisor Catalog (4)

1 151 5,711 862,361

Collatz Trajectory (144 steps to reach 1)

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

862,361 2,587,084 1,293,542 646,771 1,940,314 970,157 2,910,472 1,455,236 727,618 363,809 1,091,428 545,714 272,857 818,572 409,286 204,643 613,930 306,965 920,896 460,448 230,224 115,112 57,556 28,778 14,389 43,168 21,584 10,792 5,396 2,698 1,349 4,048 2,024 1,012 506 253 760 380 190 95 286 143 430 215 646 323 970 485 1,456 728 364 182 91 274 137 412 206 103 310 155

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