2,018,245

5 × 403649

2,018,245 factors as 5 × 403649. Its 4 positive divisors give a proper-divisor sum of 403,655, so this integer is deficient. The Collatz stopping time is 91 steps.

Prime Factor Structure

Factorization String 5 × 403649

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 2,421,900

Proper Divisor Sum 403,655

Digit Sum / Digital Root 22 (Root: 4)

Adjacent Primes #2018183 ← → #2018249

Radix Representation

Decimal	2018245
Binary	111101100101111000101 (21 bits)
Octal	0o7545705
Hexadecimal	0x1ECBC5

Divisor Catalog (4)

1 5 403,649 2,018,245

Collatz Trajectory (91 steps to reach 1)

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

2,018,245 6,054,736 3,027,368 1,513,684 756,842 378,421 1,135,264 567,632 283,816 141,908 70,954 35,477 106,432 53,216 26,608 13,304 6,652 3,326 1,663 4,990 2,495 7,486 3,743 11,230 5,615 16,846 8,423 25,270 12,635 37,906 18,953 56,860 28,430 14,215 42,646 21,323 63,970 31,985 95,956 47,978 23,989 71,968 35,984 17,992 8,996 4,498 2,249 6,748 3,374 1,687 5,062 2,531 7,594 3,797 11,392 5,696 2,848 1,424 712 356

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