2,801,642

2 × 1400821

Starting at 2,801,642, the Collatz iteration reaches 1 after 94 steps. The first transition is 1400821; the starting value is even with 4 positive divisors.

Prime Factor Structure

Factorization String 2 × 1400821

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 4,202,466

Proper Divisor Sum 1,400,824

Digit Sum / Digital Root 23 (Root: 5)

Adjacent Primes #2801641 ← → #2801681

Radix Representation

Decimal	2801642
Binary	1010101011111111101010 (22 bits)
Octal	0o12537752
Hexadecimal	0x2ABFEA

Divisor Catalog (4)

1 2 1,400,821 2,801,642

Collatz Trajectory (94 steps to reach 1)

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

2,801,642 1,400,821 4,202,464 2,101,232 1,050,616 525,308 262,654 131,327 393,982 196,991 590,974 295,487 886,462 443,231 1,329,694 664,847 1,994,542 997,271 2,991,814 1,495,907 4,487,722 2,243,861 6,731,584 3,365,792 1,682,896 841,448 420,724 210,362 105,181 315,544 157,772 78,886 39,443 118,330 59,165 177,496 88,748 44,374 22,187 66,562 33,281 99,844 49,922 24,961 74,884 37,442 18,721 56,164 28,082 14,041 42,124 21,062 10,531 31,594 15,797 47,392 23,696 11,848 5,924 2,962

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