λ
Sequence Observatory

7,200,519

3 × 127 × 18899
Deficient Odd Composite

Starting at 7,200,519, the Collatz iteration reaches 1 after 235 steps. The first transition is 21601558; the starting value is odd with 8 positive divisors.

Prime Factor Structure

Factorization String 3 × 127 × 18899
Distinct Prime Factors 3
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 8
Divisor Sum (σ) 9,676,800
Proper Divisor Sum 2,476,281
Digit Sum / Digital Root 24 (Root: 6)
Adjacent Primes #7200517 ← → #7200521

Radix Representation

Decimal 7200519
Binary 11011011101111100000111 (23 bits)
Octal 0o33357407
Hexadecimal 0x6DDF07

Divisor Catalog (8)

1 3 127 381 18,899 56,697 2,400,173 7,200,519

Collatz Trajectory (235 steps to reach 1)

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

7,200,519 21,601,558 10,800,779 32,402,338 16,201,169 48,603,508 24,301,754 12,150,877 36,452,632 18,226,316 9,113,158 4,556,579 13,669,738 6,834,869 20,504,608 10,252,304 5,126,152 2,563,076 1,281,538 640,769 1,922,308 961,154 480,577 1,441,732 720,866 360,433 1,081,300 540,650 270,325 810,976 405,488 202,744 101,372 50,686 25,343 76,030 38,015 114,046 57,023 171,070 85,535 256,606 128,303 384,910 192,455 577,366 288,683 866,050 433,025 1,299,076 649,538 324,769 974,308 487,154 243,577 730,732 365,366 182,683 548,050 274,025

More profiles

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