2,871,691

17 × 251 × 673

Starting at 2,871,691, the Collatz iteration reaches 1 after 244 steps. The first transition is 8615074; the starting value is odd with 8 positive divisors.

Prime Factor Structure

Factorization String 17 × 251 × 673

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 3,057,264

Proper Divisor Sum 185,573

Digit Sum / Digital Root 34 (Root: 7)

Adjacent Primes #2871689 ← → #2871719

Radix Representation

Decimal	2871691
Binary	1010111101000110001011 (22 bits)
Octal	0o12750613
Hexadecimal	0x2BD18B

Divisor Catalog (8)

1 17 251 673 4,267 11,441 168,923 2,871,691

Collatz Trajectory (244 steps to reach 1)

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

2,871,691 8,615,074 4,307,537 12,922,612 6,461,306 3,230,653 9,691,960 4,845,980 2,422,990 1,211,495 3,634,486 1,817,243 5,451,730 2,725,865 8,177,596 4,088,798 2,044,399 6,133,198 3,066,599 9,199,798 4,599,899 13,799,698 6,899,849 20,699,548 10,349,774 5,174,887 15,524,662 7,762,331 23,286,994 11,643,497 34,930,492 17,465,246 8,732,623 26,197,870 13,098,935 39,296,806 19,648,403 58,945,210 29,472,605 88,417,816 44,208,908 22,104,454 11,052,227 33,156,682 16,578,341 49,735,024 24,867,512 12,433,756 6,216,878 3,108,439 9,325,318 4,662,659 13,987,978 6,993,989 20,981,968 10,490,984 5,245,492 2,622,746 1,311,373 3,934,120

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