2,672,126

2 × 857 × 1559

Starting at 2,672,126, the Collatz iteration reaches 1 after 169 steps. The first transition is 1336063; the starting value is even with 8 positive divisors.

Prime Factor Structure

Factorization String 2 × 857 × 1559

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 4,015,440

Proper Divisor Sum 1,343,314

Digit Sum / Digital Root 26 (Root: 8)

Adjacent Primes #2672123 ← → #2672143

Radix Representation

Decimal	2672126
Binary	1010001100010111111110 (22 bits)
Octal	0o12142776
Hexadecimal	0x28C5FE

Divisor Catalog (8)

1 2 857 1,559 1,714 3,118 1,336,063 2,672,126

Collatz Trajectory (169 steps to reach 1)

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

2,672,126 1,336,063 4,008,190 2,004,095 6,012,286 3,006,143 9,018,430 4,509,215 13,527,646 6,763,823 20,291,470 10,145,735 30,437,206 15,218,603 45,655,810 22,827,905 68,483,716 34,241,858 17,120,929 51,362,788 25,681,394 12,840,697 38,522,092 19,261,046 9,630,523 28,891,570 14,445,785 43,337,356 21,668,678 10,834,339 32,503,018 16,251,509 48,754,528 24,377,264 12,188,632 6,094,316 3,047,158 1,523,579 4,570,738 2,285,369 6,856,108 3,428,054 1,714,027 5,142,082 2,571,041 7,713,124 3,856,562 1,928,281 5,784,844 2,892,422 1,446,211 4,338,634 2,169,317 6,507,952 3,253,976 1,626,988 813,494 406,747 1,220,242 610,121

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