λ
Sequence Observatory

1,125,986

2 × 251 × 2243
Deficient Even Composite

Starting at 1,125,986, the Collatz iteration reaches 1 after 85 steps. The first transition is 562993; the starting value is even with 8 positive divisors.

Prime Factor Structure

Factorization String 2 × 251 × 2243
Distinct Prime Factors 3
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 8
Divisor Sum (σ) 1,696,464
Proper Divisor Sum 570,478
Digit Sum / Digital Root 32 (Root: 5)
Adjacent Primes #1125973 ← → #1125991

Radix Representation

Decimal 1125986
Binary 100010010111001100010 (21 bits)
Octal 0o4227142
Hexadecimal 0x112E62

Divisor Catalog (8)

1 2 251 502 2,243 4,486 562,993 1,125,986

Collatz Trajectory (85 steps to reach 1)

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

1,125,986 562,993 1,688,980 844,490 422,245 1,266,736 633,368 316,684 158,342 79,171 237,514 118,757 356,272 178,136 89,068 44,534 22,267 66,802 33,401 100,204 50,102 25,051 75,154 37,577 112,732 56,366 28,183 84,550 42,275 126,826 63,413 190,240 95,120 47,560 23,780 11,890 5,945 17,836 8,918 4,459 13,378 6,689 20,068 10,034 5,017 15,052 7,526 3,763 11,290 5,645 16,936 8,468 4,234 2,117 6,352 3,176 1,588 794 397 1,192

More profiles

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