2,991,154

2 × 37 × 83 × 487

Starting at 2,991,154, the Collatz iteration reaches 1 after 76 steps. The first transition is 1495577; the starting value is even with 16 positive divisors.

Prime Factor Structure

Factorization String 2 × 37 × 83 × 487

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 4,673,088

Proper Divisor Sum 1,681,934

Digit Sum / Digital Root 31 (Root: 4)

Adjacent Primes #2991143 ← → #2991187

Radix Representation

Decimal	2991154
Binary	1011011010010000110010 (22 bits)
Octal	0o13322062
Hexadecimal	0x2DA432

Divisor Catalog (16)

1 2 37 74 83 166 487 974 3,071 6,142 18,019 36,038 40,421 80,842 1,495,577 2,991,154

Collatz Trajectory (76 steps to reach 1)

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

2,991,154 1,495,577 4,486,732 2,243,366 1,121,683 3,365,050 1,682,525 5,047,576 2,523,788 1,261,894 630,947 1,892,842 946,421 2,839,264 1,419,632 709,816 354,908 177,454 88,727 266,182 133,091 399,274 199,637 598,912 299,456 149,728 74,864 37,432 18,716 9,358 4,679 14,038 7,019 21,058 10,529 31,588 15,794 7,897 23,692 11,846 5,923 17,770 8,885 26,656 13,328 6,664 3,332 1,666 833 2,500 1,250 625 1,876 938 469 1,408 704 352 176 88

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