λ
Sequence Observatory

7,252,243

19 × 381697
Deficient Odd Composite

Starting at 7,252,243, the Collatz iteration reaches 1 after 235 steps. The first transition is 21756730; the starting value is odd with 4 positive divisors.

Prime Factor Structure

Factorization String 19 × 381697
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 4
Divisor Sum (σ) 7,633,960
Proper Divisor Sum 381,717
Digit Sum / Digital Root 25 (Root: 7)
Adjacent Primes #7252237 ← → #7252253

Radix Representation

Decimal 7252243
Binary 11011101010100100010011 (23 bits)
Octal 0o33524423
Hexadecimal 0x6EA913

Divisor Catalog (4)

1 19 381,697 7,252,243

Collatz Trajectory (235 steps to reach 1)

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

7,252,243 21,756,730 10,878,365 32,635,096 16,317,548 8,158,774 4,079,387 12,238,162 6,119,081 18,357,244 9,178,622 4,589,311 13,767,934 6,883,967 20,651,902 10,325,951 30,977,854 15,488,927 46,466,782 23,233,391 69,700,174 34,850,087 104,550,262 52,275,131 156,825,394 78,412,697 235,238,092 117,619,046 58,809,523 176,428,570 88,214,285 264,642,856 132,321,428 66,160,714 33,080,357 99,241,072 49,620,536 24,810,268 12,405,134 6,202,567 18,607,702 9,303,851 27,911,554 13,955,777 41,867,332 20,933,666 10,466,833 31,400,500 15,700,250 7,850,125 23,550,376 11,775,188 5,887,594 2,943,797 8,831,392 4,415,696 2,207,848 1,103,924 551,962 275,981

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