λ
Sequence Observatory

2,221,214

2 × 19 × 58453
Deficient Even Composite

Starting at 2,221,214, the Collatz iteration reaches 1 after 166 steps. The first transition is 1110607; the starting value is even with 8 positive divisors.

Prime Factor Structure

Factorization String 2 × 19 × 58453
Distinct Prime Factors 3
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 8
Divisor Sum (σ) 3,507,240
Proper Divisor Sum 1,286,026
Digit Sum / Digital Root 14 (Root: 5)
Adjacent Primes #2221187 ← → #2221217

Radix Representation

Decimal 2221214
Binary 1000011110010010011110 (22 bits)
Octal 0o10362236
Hexadecimal 0x21E49E

Divisor Catalog (8)

1 2 19 38 58,453 116,906 1,110,607 2,221,214

Collatz Trajectory (166 steps to reach 1)

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

2,221,214 1,110,607 3,331,822 1,665,911 4,997,734 2,498,867 7,496,602 3,748,301 11,244,904 5,622,452 2,811,226 1,405,613 4,216,840 2,108,420 1,054,210 527,105 1,581,316 790,658 395,329 1,185,988 592,994 296,497 889,492 444,746 222,373 667,120 333,560 166,780 83,390 41,695 125,086 62,543 187,630 93,815 281,446 140,723 422,170 211,085 633,256 316,628 158,314 79,157 237,472 118,736 59,368 29,684 14,842 7,421 22,264 11,132 5,566 2,783 8,350 4,175 12,526 6,263 18,790 9,395 28,186 14,093

More profiles

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