λ
Sigma Notebook

1,699,745

5 × 17 × 19997
Deficient Odd Composite

1,699,745 is odd and not a perfect square. Its factorization is 5 × 17 × 19997 and its 8 divisors sum to 2,159,784.

Prime Factor Structure

Factorization String 5 × 17 × 19997
Distinct Prime Factors 3
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 8
Divisor Sum (σ) 2,159,784
Proper Divisor Sum 460,039
Digit Sum / Digital Root 41 (Root: 5)
Adjacent Primes #1699741 ← → #1699781

Radix Representation

Decimal 1699745
Binary 110011110111110100001 (21 bits)
Octal 0o6367641
Hexadecimal 0x19EFA1

Divisor Catalog (8)

1 5 17 85 19,997 99,985 339,949 1,699,745

Collatz Trajectory (207 steps to reach 1)

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

1,699,745 5,099,236 2,549,618 1,274,809 3,824,428 1,912,214 956,107 2,868,322 1,434,161 4,302,484 2,151,242 1,075,621 3,226,864 1,613,432 806,716 403,358 201,679 605,038 302,519 907,558 453,779 1,361,338 680,669 2,042,008 1,021,004 510,502 255,251 765,754 382,877 1,148,632 574,316 287,158 143,579 430,738 215,369 646,108 323,054 161,527 484,582 242,291 726,874 363,437 1,090,312 545,156 272,578 136,289 408,868 204,434 102,217 306,652 153,326 76,663 229,990 114,995 344,986 172,493 517,480 258,740 129,370 64,685

More profiles

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