λ
Sequence Observatory

1,041,845

5 × 7 × 172 × 103
Deficient Odd Composite

Starting at 1,041,845, the Collatz iteration reaches 1 after 165 steps. The first transition is 3125536; the starting value is odd with 24 positive divisors.

Prime Factor Structure

Factorization String 5 × 7 × 17^2 × 103
Distinct Prime Factors 4
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 24
Divisor Sum (σ) 1,532,544
Proper Divisor Sum 490,699
Digit Sum / Digital Root 23 (Root: 5)
Adjacent Primes #1041841 ← → #1041853

Radix Representation

Decimal 1041845
Binary 11111110010110110101 (20 bits)
Octal 0o3762665
Hexadecimal 0xFE5B5

Divisor Catalog (24)

1 5 7 17 35 85 103 119 289 515 595 721 1,445 1,751 2,023 3,605 8,755 10,115 12,257 29,767 61,285 148,835 208,369 1,041,845

Collatz Trajectory (165 steps to reach 1)

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

1,041,845 3,125,536 1,562,768 781,384 390,692 195,346 97,673 293,020 146,510 73,255 219,766 109,883 329,650 164,825 494,476 247,238 123,619 370,858 185,429 556,288 278,144 139,072 69,536 34,768 17,384 8,692 4,346 2,173 6,520 3,260 1,630 815 2,446 1,223 3,670 1,835 5,506 2,753 8,260 4,130 2,065 6,196 3,098 1,549 4,648 2,324 1,162 581 1,744 872 436 218 109 328 164 82 41 124 62 31

More profiles

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