λ
Sigma Notebook

664,195

5 × 72 × 2711
Deficient Odd Composite

664,195 is odd and not a perfect square. Its factorization is 5 × 7^2 × 2711 and its 12 divisors sum to 927,504.

Prime Factor Structure

Factorization String 5 × 7^2 × 2711
Distinct Prime Factors 3
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 12
Divisor Sum (σ) 927,504
Proper Divisor Sum 263,309
Digit Sum / Digital Root 31 (Root: 4)
Adjacent Primes #664193 ← → #664199

Radix Representation

Decimal 664195
Binary 10100010001010000011 (20 bits)
Octal 0o2421203
Hexadecimal 0xA2283

Divisor Catalog (12)

1 5 7 35 49 245 2,711 13,555 18,977 94,885 132,839 664,195

Collatz Trajectory (92 steps to reach 1)

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

664,195 1,992,586 996,293 2,988,880 1,494,440 747,220 373,610 186,805 560,416 280,208 140,104 70,052 35,026 17,513 52,540 26,270 13,135 39,406 19,703 59,110 29,555 88,666 44,333 133,000 66,500 33,250 16,625 49,876 24,938 12,469 37,408 18,704 9,352 4,676 2,338 1,169 3,508 1,754 877 2,632 1,316 658 329 988 494 247 742 371 1,114 557 1,672 836 418 209 628 314 157 472 236 118

More profiles

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