λ
Matchaa Zalai

7,781,749

2621 × 2969
Deficient Odd Composite

7,781,749 factors as 2621 × 2969. Its 4 positive divisors give a proper-divisor sum of 5,591, so this integer is deficient. The Collatz stopping time is 98 steps.

Prime Factor Structure

Factorization String 2621 × 2969
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 4
Divisor Sum (σ) 7,787,340
Proper Divisor Sum 5,591
Digit Sum / Digital Root 43 (Root: 7)
Adjacent Primes #7781731 ← → #7781777

Radix Representation

Decimal 7781749
Binary 11101101011110101110101 (23 bits)
Octal 0o35536565
Hexadecimal 0x76BD75

Divisor Catalog (4)

1 2,621 2,969 7,781,749

Collatz Trajectory (98 steps to reach 1)

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

7,781,749 23,345,248 11,672,624 5,836,312 2,918,156 1,459,078 729,539 2,188,618 1,094,309 3,282,928 1,641,464 820,732 410,366 205,183 615,550 307,775 923,326 461,663 1,384,990 692,495 2,077,486 1,038,743 3,116,230 1,558,115 4,674,346 2,337,173 7,011,520 3,505,760 1,752,880 876,440 438,220 219,110 109,555 328,666 164,333 493,000 246,500 123,250 61,625 184,876 92,438 46,219 138,658 69,329 207,988 103,994 51,997 155,992 77,996 38,998 19,499 58,498 29,249 87,748 43,874 21,937 65,812 32,906 16,453 49,360

More profiles

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