λ
Sequence Observatory

1,121,424

24 × 3 × 61 × 383
Abundant Even Composite

Starting at 1,121,424, the Collatz iteration reaches 1 after 222 steps. The first transition is 560712; the starting value is even with 40 positive divisors.

Prime Factor Structure

Factorization String 2^4 × 3 × 61 × 383
Distinct Prime Factors 4
Square Status No
Abundance Measure Abundant

Analytical Properties

Total Divisors 40
Divisor Sum (σ) 2,952,192
Proper Divisor Sum 1,830,768
Digit Sum / Digital Root 15 (Root: 6)
Adjacent Primes #1121423 ← → #1121431

Radix Representation

Decimal 1121424
Binary 100010001110010010000 (21 bits)
Octal 0o4216220
Hexadecimal 0x111C90

Divisor Catalog (40)

1 2 3 4 6 8 12 16 24 48 61 122 183 244 366 383 488 732 766 976 1,149 1,464 1,532 2,298 2,928 3,064 4,596 6,128 9,192 18,384 23,363 46,726 70,089 93,452 140,178 186,904 280,356 373,808 560,712 1,121,424

Collatz Trajectory (222 steps to reach 1)

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

1,121,424 560,712 280,356 140,178 70,089 210,268 105,134 52,567 157,702 78,851 236,554 118,277 354,832 177,416 88,708 44,354 22,177 66,532 33,266 16,633 49,900 24,950 12,475 37,426 18,713 56,140 28,070 14,035 42,106 21,053 63,160 31,580 15,790 7,895 23,686 11,843 35,530 17,765 53,296 26,648 13,324 6,662 3,331 9,994 4,997 14,992 7,496 3,748 1,874 937 2,812 1,406 703 2,110 1,055 3,166 1,583 4,750 2,375 7,126

More profiles

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