9,913,945

5 × 47 × 42187

Starting at 9,913,945, the Collatz iteration reaches 1 after 189 steps. The first transition is 29741836; the starting value is odd with 8 positive divisors.

Prime Factor Structure

Factorization String 5 × 47 × 42187

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 12,150,144

Proper Divisor Sum 2,236,199

Digit Sum / Digital Root 40 (Root: 4)

Adjacent Primes #9913933 ← → #9913957

Radix Representation

Decimal	9913945
Binary	100101110100011001011001 (24 bits)
Octal	0o45643131
Hexadecimal	0x974659

Divisor Catalog (8)

1 5 47 235 42,187 210,935 1,982,789 9,913,945

Collatz Trajectory (189 steps to reach 1)

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

9,913,945 29,741,836 14,870,918 7,435,459 22,306,378 11,153,189 33,459,568 16,729,784 8,364,892 4,182,446 2,091,223 6,273,670 3,136,835 9,410,506 4,705,253 14,115,760 7,057,880 3,528,940 1,764,470 882,235 2,646,706 1,323,353 3,970,060 1,985,030 992,515 2,977,546 1,488,773 4,466,320 2,233,160 1,116,580 558,290 279,145 837,436 418,718 209,359 628,078 314,039 942,118 471,059 1,413,178 706,589 2,119,768 1,059,884 529,942 264,971 794,914 397,457 1,192,372 596,186 298,093 894,280 447,140 223,570 111,785 335,356 167,678 83,839 251,518 125,759 377,278

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