1,558,986

2 × 3 × 11 × 13 × 23 × 79

Starting at 1,558,986, the Collatz iteration reaches 1 after 194 steps. The first transition is 779493; the starting value is even with 64 positive divisors.

Prime Factor Structure

Factorization String 2 × 3 × 11 × 13 × 23 × 79

Distinct Prime Factors 6

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 64

Divisor Sum (σ) 3,870,720

Proper Divisor Sum 2,311,734

Digit Sum / Digital Root 42 (Root: 6)

Adjacent Primes #1558981 ← → #1559017

Radix Representation

Decimal	1558986
Binary	101111100100111001010 (21 bits)
Octal	0o5744712
Hexadecimal	0x17C9CA

Divisor Catalog (60 of 64)

1 2 3 6 11 13 22 23 26 33 39 46 66 69 78 79 138 143 158 237 253 286 299 429 474 506 598 759 858 869 897 1,027 1,518 1,738 1,794 1,817 2,054 2,607 3,081 3,289 3,634 5,214 5,451 6,162 6,578 9,867 10,902 11,297 19,734 19,987 22,594 23,621 33,891 39,974 47,242 59,961 67,782 70,863 119,922 141,726

Collatz Trajectory (194 steps to reach 1)

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

1,558,986 779,493 2,338,480 1,169,240 584,620 292,310 146,155 438,466 219,233 657,700 328,850 164,425 493,276 246,638 123,319 369,958 184,979 554,938 277,469 832,408 416,204 208,102 104,051 312,154 156,077 468,232 234,116 117,058 58,529 175,588 87,794 43,897 131,692 65,846 32,923 98,770 49,385 148,156 74,078 37,039 111,118 55,559 166,678 83,339 250,018 125,009 375,028 187,514 93,757 281,272 140,636 70,318 35,159 105,478 52,739 158,218 79,109 237,328 118,664 59,332

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