λ
Sequence Observatory

3,821,426

2 × 7 × 272959
Deficient Even Composite

Starting at 3,821,426, the Collatz iteration reaches 1 after 203 steps. The first transition is 1910713; the starting value is even with 8 positive divisors.

Prime Factor Structure

Factorization String 2 × 7 × 272959
Distinct Prime Factors 3
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 8
Divisor Sum (σ) 6,551,040
Proper Divisor Sum 2,729,614
Digit Sum / Digital Root 26 (Root: 8)
Adjacent Primes #3821423 ← → #3821437

Radix Representation

Decimal 3821426
Binary 1110100100111101110010 (22 bits)
Octal 0o16447562
Hexadecimal 0x3A4F72

Divisor Catalog (8)

1 2 7 14 272,959 545,918 1,910,713 3,821,426

Collatz Trajectory (203 steps to reach 1)

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

3,821,426 1,910,713 5,732,140 2,866,070 1,433,035 4,299,106 2,149,553 6,448,660 3,224,330 1,612,165 4,836,496 2,418,248 1,209,124 604,562 302,281 906,844 453,422 226,711 680,134 340,067 1,020,202 510,101 1,530,304 765,152 382,576 191,288 95,644 47,822 23,911 71,734 35,867 107,602 53,801 161,404 80,702 40,351 121,054 60,527 181,582 90,791 272,374 136,187 408,562 204,281 612,844 306,422 153,211 459,634 229,817 689,452 344,726 172,363 517,090 258,545 775,636 387,818 193,909 581,728 290,864 145,432

More profiles

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