λ
Sequence Observatory

3,861,188

22 × 443 × 2179
Deficient Even Composite

Starting at 3,861,188, the Collatz iteration reaches 1 after 97 steps. The first transition is 1930594; the starting value is even with 12 positive divisors.

Prime Factor Structure

Factorization String 2^2 × 443 × 2179
Distinct Prime Factors 3
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 12
Divisor Sum (σ) 6,775,440
Proper Divisor Sum 2,914,252
Digit Sum / Digital Root 35 (Root: 8)
Adjacent Primes #3861173 ← → #3861203

Radix Representation

Decimal 3861188
Binary 1110101110101011000100 (22 bits)
Octal 0o16565304
Hexadecimal 0x3AEAC4

Divisor Catalog (12)

1 2 4 443 886 1,772 2,179 4,358 8,716 965,297 1,930,594 3,861,188

Collatz Trajectory (97 steps to reach 1)

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

3,861,188 1,930,594 965,297 2,895,892 1,447,946 723,973 2,171,920 1,085,960 542,980 271,490 135,745 407,236 203,618 101,809 305,428 152,714 76,357 229,072 114,536 57,268 28,634 14,317 42,952 21,476 10,738 5,369 16,108 8,054 4,027 12,082 6,041 18,124 9,062 4,531 13,594 6,797 20,392 10,196 5,098 2,549 7,648 3,824 1,912 956 478 239 718 359 1,078 539 1,618 809 2,428 1,214 607 1,822 911 2,734 1,367 4,102

More profiles

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