λ
Sequence Observatory

3,994,472

23 × 499309
Deficient Even Composite

Starting at 3,994,472, the Collatz iteration reaches 1 after 185 steps. The first transition is 1997236; the starting value is even with 8 positive divisors.

Prime Factor Structure

Factorization String 2^3 × 499309
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 8
Divisor Sum (σ) 7,489,650
Proper Divisor Sum 3,495,178
Digit Sum / Digital Root 38 (Root: 2)
Adjacent Primes #3994453 ← → #3994481

Radix Representation

Decimal 3994472
Binary 1111001111001101101000 (22 bits)
Octal 0o17171550
Hexadecimal 0x3CF368

Divisor Catalog (8)

1 2 4 8 499,309 998,618 1,997,236 3,994,472

Collatz Trajectory (185 steps to reach 1)

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

3,994,472 1,997,236 998,618 499,309 1,497,928 748,964 374,482 187,241 561,724 280,862 140,431 421,294 210,647 631,942 315,971 947,914 473,957 1,421,872 710,936 355,468 177,734 88,867 266,602 133,301 399,904 199,952 99,976 49,988 24,994 12,497 37,492 18,746 9,373 28,120 14,060 7,030 3,515 10,546 5,273 15,820 7,910 3,955 11,866 5,933 17,800 8,900 4,450 2,225 6,676 3,338 1,669 5,008 2,504 1,252 626 313 940 470 235 706

More profiles

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