λ
Sigma Notebook

171,657

32 × 19073
Deficient Odd Composite

171,657 is odd and not a perfect square. Its factorization is 3^2 × 19073 and its 6 divisors sum to 247,962.

Prime Factor Structure

Factorization String 3^2 × 19073
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 6
Divisor Sum (σ) 247,962
Proper Divisor Sum 76,305
Digit Sum / Digital Root 27 (Root: 9)
Adjacent Primes #171653 ← → #171659

Radix Representation

Decimal 171657
Binary 101001111010001001 (18 bits)
Octal 0o517211
Hexadecimal 0x29E89

Divisor Catalog (6)

1 3 9 19,073 57,219 171,657

Collatz Trajectory (333 steps to reach 1)

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

171,657 514,972 257,486 128,743 386,230 193,115 579,346 289,673 869,020 434,510 217,255 651,766 325,883 977,650 488,825 1,466,476 733,238 366,619 1,099,858 549,929 1,649,788 824,894 412,447 1,237,342 618,671 1,856,014 928,007 2,784,022 1,392,011 4,176,034 2,088,017 6,264,052 3,132,026 1,566,013 4,698,040 2,349,020 1,174,510 587,255 1,761,766 880,883 2,642,650 1,321,325 3,963,976 1,981,988 990,994 495,497 1,486,492 743,246 371,623 1,114,870 557,435 1,672,306 836,153 2,508,460 1,254,230 627,115 1,881,346 940,673 2,822,020 1,411,010

More profiles

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