143,705

5 × 41 × 701

Starting at 143,705, the Collatz iteration reaches 1 after 157 steps. The first transition is 431116; the starting value is odd with 8 positive divisors.

Prime Factor Structure

Factorization String 5 × 41 × 701

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 176,904

Proper Divisor Sum 33,199

Digit Sum / Digital Root 20 (Root: 2)

Adjacent Primes #143699 ← → #143711

Radix Representation

Decimal	143705
Binary	100011000101011001 (18 bits)
Octal	0o430531
Hexadecimal	0x23159

Divisor Catalog (8)

1 5 41 205 701 3,505 28,741 143,705

Collatz Trajectory (157 steps to reach 1)

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

143,705 431,116 215,558 107,779 323,338 161,669 485,008 242,504 121,252 60,626 30,313 90,940 45,470 22,735 68,206 34,103 102,310 51,155 153,466 76,733 230,200 115,100 57,550 28,775 86,326 43,163 129,490 64,745 194,236 97,118 48,559 145,678 72,839 218,518 109,259 327,778 163,889 491,668 245,834 122,917 368,752 184,376 92,188 46,094 23,047 69,142 34,571 103,714 51,857 155,572 77,786 38,893 116,680 58,340 29,170 14,585 43,756 21,878 10,939 32,818

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