4,071,486

2 × 3 × 678581

Starting at 4,071,486, the Collatz iteration reaches 1 after 123 steps. The first transition is 2035743; the starting value is even with 8 positive divisors.

Prime Factor Structure

Factorization String 2 × 3 × 678581

Distinct Prime Factors 3

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 8,142,984

Proper Divisor Sum 4,071,498

Digit Sum / Digital Root 30 (Root: 3)

Adjacent Primes #4071479 ← → #4071497

Radix Representation

Decimal	4071486
Binary	1111100010000000111110 (22 bits)
Octal	0o17420076
Hexadecimal	0x3E203E

Divisor Catalog (8)

1 2 3 6 678,581 1,357,162 2,035,743 4,071,486

Collatz Trajectory (123 steps to reach 1)

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

4,071,486 2,035,743 6,107,230 3,053,615 9,160,846 4,580,423 13,741,270 6,870,635 20,611,906 10,305,953 30,917,860 15,458,930 7,729,465 23,188,396 11,594,198 5,797,099 17,391,298 8,695,649 26,086,948 13,043,474 6,521,737 19,565,212 9,782,606 4,891,303 14,673,910 7,336,955 22,010,866 11,005,433 33,016,300 16,508,150 8,254,075 24,762,226 12,381,113 37,143,340 18,571,670 9,285,835 27,857,506 13,928,753 41,786,260 20,893,130 10,446,565 31,339,696 15,669,848 7,834,924 3,917,462 1,958,731 5,876,194 2,938,097 8,814,292 4,407,146 2,203,573 6,610,720 3,305,360 1,652,680 826,340 413,170 206,585 619,756 309,878 154,939

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