2,143,835

5 × 157 × 2731

Starting at 2,143,835, the Collatz iteration reaches 1 after 104 steps. The first transition is 6431506; the starting value is odd with 8 positive divisors.

Prime Factor Structure

Factorization String 5 × 157 × 2731

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 2,589,936

Proper Divisor Sum 446,101

Digit Sum / Digital Root 26 (Root: 8)

Adjacent Primes #2143831 ← → #2143837

Radix Representation

Decimal	2143835
Binary	1000001011011001011011 (22 bits)
Octal	0o10133133
Hexadecimal	0x20B65B

Divisor Catalog (8)

1 5 157 785 2,731 13,655 428,767 2,143,835

Collatz Trajectory (104 steps to reach 1)

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

2,143,835 6,431,506 3,215,753 9,647,260 4,823,630 2,411,815 7,235,446 3,617,723 10,853,170 5,426,585 16,279,756 8,139,878 4,069,939 12,209,818 6,104,909 18,314,728 9,157,364 4,578,682 2,289,341 6,868,024 3,434,012 1,717,006 858,503 2,575,510 1,287,755 3,863,266 1,931,633 5,794,900 2,897,450 1,448,725 4,346,176 2,173,088 1,086,544 543,272 271,636 135,818 67,909 203,728 101,864 50,932 25,466 12,733 38,200 19,100 9,550 4,775 14,326 7,163 21,490 10,745 32,236 16,118 8,059 24,178 12,089 36,268 18,134 9,067 27,202 13,601

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