2,720,162

2 × 1360081

Starting at 2,720,162, the Collatz iteration reaches 1 after 107 steps. The first transition is 1360081; the starting value is even with 4 positive divisors.

Prime Factor Structure

Factorization String 2 × 1360081

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 4,080,246

Proper Divisor Sum 1,360,084

Digit Sum / Digital Root 20 (Root: 2)

Adjacent Primes #2720149 ← → #2720183

Radix Representation

Decimal	2720162
Binary	1010011000000110100010 (22 bits)
Octal	0o12300642
Hexadecimal	0x2981A2

Divisor Catalog (4)

1 2 1,360,081 2,720,162

Collatz Trajectory (107 steps to reach 1)

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

2,720,162 1,360,081 4,080,244 2,040,122 1,020,061 3,060,184 1,530,092 765,046 382,523 1,147,570 573,785 1,721,356 860,678 430,339 1,291,018 645,509 1,936,528 968,264 484,132 242,066 121,033 363,100 181,550 90,775 272,326 136,163 408,490 204,245 612,736 306,368 153,184 76,592 38,296 19,148 9,574 4,787 14,362 7,181 21,544 10,772 5,386 2,693 8,080 4,040 2,020 1,010 505 1,516 758 379 1,138 569 1,708 854 427 1,282 641 1,924 962 481

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