λ
Sequence Observatory

2,071,165

5 × 401 × 1033
Deficient Odd Composite

Starting at 2,071,165, the Collatz iteration reaches 1 after 197 steps. The first transition is 6213496; the starting value is odd with 8 positive divisors.

Prime Factor Structure

Factorization String 5 × 401 × 1033
Distinct Prime Factors 3
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 8
Divisor Sum (σ) 2,494,008
Proper Divisor Sum 422,843
Digit Sum / Digital Root 22 (Root: 4)
Adjacent Primes #2071159 ← → #2071169

Radix Representation

Decimal 2071165
Binary 111111001101001111101 (21 bits)
Octal 0o7715175
Hexadecimal 0x1F9A7D

Divisor Catalog (8)

1 5 401 1,033 2,005 5,165 414,233 2,071,165

Collatz Trajectory (197 steps to reach 1)

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

2,071,165 6,213,496 3,106,748 1,553,374 776,687 2,330,062 1,165,031 3,495,094 1,747,547 5,242,642 2,621,321 7,863,964 3,931,982 1,965,991 5,897,974 2,948,987 8,846,962 4,423,481 13,270,444 6,635,222 3,317,611 9,952,834 4,976,417 14,929,252 7,464,626 3,732,313 11,196,940 5,598,470 2,799,235 8,397,706 4,198,853 12,596,560 6,298,280 3,149,140 1,574,570 787,285 2,361,856 1,180,928 590,464 295,232 147,616 73,808 36,904 18,452 9,226 4,613 13,840 6,920 3,460 1,730 865 2,596 1,298 649 1,948 974 487 1,462 731 2,194

More profiles

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