18,424,021

7 × 11 × 239273

18,424,021 factors as 7 × 11 × 239273. Its 8 positive divisors give a proper-divisor sum of 4,546,283, so this integer is deficient. The Collatz stopping time is 89 steps.

Prime Factor Structure

Factorization String 7 × 11 × 239273

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 22,970,304

Proper Divisor Sum 4,546,283

Digit Sum / Digital Root 22 (Root: 4)

Adjacent Primes #18423967 ← → #18424027

Radix Representation

Decimal	18424021
Binary	1000110010010000011010101 (25 bits)
Octal	0o106220325
Hexadecimal	0x11920D5

Divisor Catalog (8)

1 7 11 77 239,273 1,674,911 2,632,003 18,424,021

Collatz Trajectory (89 steps to reach 1)

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

18,424,021 55,272,064 27,636,032 13,818,016 6,909,008 3,454,504 1,727,252 863,626 431,813 1,295,440 647,720 323,860 161,930 80,965 242,896 121,448 60,724 30,362 15,181 45,544 22,772 11,386 5,693 17,080 8,540 4,270 2,135 6,406 3,203 9,610 4,805 14,416 7,208 3,604 1,802 901 2,704 1,352 676 338 169 508 254 127 382 191 574 287 862 431 1,294 647 1,942 971 2,914 1,457 4,372 2,186 1,093 3,280

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