1,143,559

31 × 37 × 997

Starting at 1,143,559, the Collatz iteration reaches 1 after 129 steps. The first transition is 3430678; the starting value is odd with 8 positive divisors.

Prime Factor Structure

Factorization String 31 × 37 × 997

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 1,213,568

Proper Divisor Sum 70,009

Digit Sum / Digital Root 28 (Root: 1)

Adjacent Primes #1143551 ← → #1143563

Radix Representation

Decimal	1143559
Binary	100010111001100000111 (21 bits)
Octal	0o4271407
Hexadecimal	0x117307

Divisor Catalog (8)

1 31 37 997 1,147 30,907 36,889 1,143,559

Collatz Trajectory (129 steps to reach 1)

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

1,143,559 3,430,678 1,715,339 5,146,018 2,573,009 7,719,028 3,859,514 1,929,757 5,789,272 2,894,636 1,447,318 723,659 2,170,978 1,085,489 3,256,468 1,628,234 814,117 2,442,352 1,221,176 610,588 305,294 152,647 457,942 228,971 686,914 343,457 1,030,372 515,186 257,593 772,780 386,390 193,195 579,586 289,793 869,380 434,690 217,345 652,036 326,018 163,009 489,028 244,514 122,257 366,772 183,386 91,693 275,080 137,540 68,770 34,385 103,156 51,578 25,789 77,368 38,684 19,342 9,671 29,014 14,507 43,522

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