λ
Sequence Observatory

1,385,599

167 × 8297
Deficient Odd Composite

Starting at 1,385,599, the Collatz iteration reaches 1 after 186 steps. The first transition is 4156798; the starting value is odd with 4 positive divisors.

Prime Factor Structure

Factorization String 167 × 8297
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 4
Divisor Sum (σ) 1,394,064
Proper Divisor Sum 8,465
Digit Sum / Digital Root 40 (Root: 4)
Adjacent Primes #1385569 ← → #1385603

Radix Representation

Decimal 1385599
Binary 101010010010001111111 (21 bits)
Octal 0o5222177
Hexadecimal 0x15247F

Divisor Catalog (4)

1 167 8,297 1,385,599

Collatz Trajectory (186 steps to reach 1)

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

1,385,599 4,156,798 2,078,399 6,235,198 3,117,599 9,352,798 4,676,399 14,029,198 7,014,599 21,043,798 10,521,899 31,565,698 15,782,849 47,348,548 23,674,274 11,837,137 35,511,412 17,755,706 8,877,853 26,633,560 13,316,780 6,658,390 3,329,195 9,987,586 4,993,793 14,981,380 7,490,690 3,745,345 11,236,036 5,618,018 2,809,009 8,427,028 4,213,514 2,106,757 6,320,272 3,160,136 1,580,068 790,034 395,017 1,185,052 592,526 296,263 888,790 444,395 1,333,186 666,593 1,999,780 999,890 499,945 1,499,836 749,918 374,959 1,124,878 562,439 1,687,318 843,659 2,530,978 1,265,489 3,796,468 1,898,234

More profiles

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