λ
Sequence Observatory

868,942

2 × 434471
Deficient Even Composite

Starting at 868,942, the Collatz iteration reaches 1 after 157 steps. The first transition is 434471; the starting value is even with 4 positive divisors.

Prime Factor Structure

Factorization String 2 × 434471
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 4
Divisor Sum (σ) 1,303,416
Proper Divisor Sum 434,474
Digit Sum / Digital Root 37 (Root: 1)
Adjacent Primes #868939 ← → #868943

Radix Representation

Decimal 868942
Binary 11010100001001001110 (20 bits)
Octal 0o3241116
Hexadecimal 0xD424E

Divisor Catalog (4)

1 2 434,471 868,942

Collatz Trajectory (157 steps to reach 1)

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

868,942 434,471 1,303,414 651,707 1,955,122 977,561 2,932,684 1,466,342 733,171 2,199,514 1,099,757 3,299,272 1,649,636 824,818 412,409 1,237,228 618,614 309,307 927,922 463,961 1,391,884 695,942 347,971 1,043,914 521,957 1,565,872 782,936 391,468 195,734 97,867 293,602 146,801 440,404 220,202 110,101 330,304 165,152 82,576 41,288 20,644 10,322 5,161 15,484 7,742 3,871 11,614 5,807 17,422 8,711 26,134 13,067 39,202 19,601 58,804 29,402 14,701 44,104 22,052 11,026 5,513

More profiles

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