2,718,085

5 × 543617

Starting at 2,718,085, the Collatz iteration reaches 1 after 143 steps. The first transition is 8154256; the starting value is odd with 4 positive divisors.

Prime Factor Structure

Factorization String 5 × 543617

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 3,261,708

Proper Divisor Sum 543,623

Digit Sum / Digital Root 31 (Root: 4)

Adjacent Primes #2718061 ← → #2718097

Radix Representation

Decimal	2718085
Binary	1010010111100110000101 (22 bits)
Octal	0o12274605
Hexadecimal	0x297985

Divisor Catalog (4)

1 5 543,617 2,718,085

Collatz Trajectory (143 steps to reach 1)

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

2,718,085 8,154,256 4,077,128 2,038,564 1,019,282 509,641 1,528,924 764,462 382,231 1,146,694 573,347 1,720,042 860,021 2,580,064 1,290,032 645,016 322,508 161,254 80,627 241,882 120,941 362,824 181,412 90,706 45,353 136,060 68,030 34,015 102,046 51,023 153,070 76,535 229,606 114,803 344,410 172,205 516,616 258,308 129,154 64,577 193,732 96,866 48,433 145,300 72,650 36,325 108,976 54,488 27,244 13,622 6,811 20,434 10,217 30,652 15,326 7,663 22,990 11,495 34,486 17,243

← Previous Integer #2,718,084 Browse Full Index Next Integer #2,718,086 →