2,856,199

331 × 8629

Starting at 2,856,199, the Collatz iteration reaches 1 after 151 steps. The first transition is 8568598; the starting value is odd with 4 positive divisors.

Prime Factor Structure

Factorization String 331 × 8629

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 2,865,160

Proper Divisor Sum 8,961

Digit Sum / Digital Root 40 (Root: 4)

Adjacent Primes #2856197 ← → #2856229

Radix Representation

Decimal	2856199
Binary	1010111001010100000111 (22 bits)
Octal	0o12712407
Hexadecimal	0x2B9507

Divisor Catalog (4)

1 331 8,629 2,856,199

Collatz Trajectory (151 steps to reach 1)

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

2,856,199 8,568,598 4,284,299 12,852,898 6,426,449 19,279,348 9,639,674 4,819,837 14,459,512 7,229,756 3,614,878 1,807,439 5,422,318 2,711,159 8,133,478 4,066,739 12,200,218 6,100,109 18,300,328 9,150,164 4,575,082 2,287,541 6,862,624 3,431,312 1,715,656 857,828 428,914 214,457 643,372 321,686 160,843 482,530 241,265 723,796 361,898 180,949 542,848 271,424 135,712 67,856 33,928 16,964 8,482 4,241 12,724 6,362 3,181 9,544 4,772 2,386 1,193 3,580 1,790 895 2,686 1,343 4,030 2,015 6,046 3,023

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