λ
Sequence Observatory

2,918,288

24 × 17 × 10729
Abundant Even Composite

Starting at 2,918,288, the Collatz iteration reaches 1 after 244 steps. The first transition is 1459144; the starting value is even with 20 positive divisors.

Prime Factor Structure

Factorization String 2^4 × 17 × 10729
Distinct Prime Factors 3
Square Status No
Abundance Measure Abundant

Analytical Properties

Total Divisors 20
Divisor Sum (σ) 5,987,340
Proper Divisor Sum 3,069,052
Digit Sum / Digital Root 38 (Root: 2)
Adjacent Primes #2918273 ← → #2918291

Radix Representation

Decimal 2918288
Binary 1011001000011110010000 (22 bits)
Octal 0o13103620
Hexadecimal 0x2C8790

Divisor Catalog (20)

1 2 4 8 16 17 34 68 136 272 10,729 21,458 42,916 85,832 171,664 182,393 364,786 729,572 1,459,144 2,918,288

Collatz Trajectory (244 steps to reach 1)

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

2,918,288 1,459,144 729,572 364,786 182,393 547,180 273,590 136,795 410,386 205,193 615,580 307,790 153,895 461,686 230,843 692,530 346,265 1,038,796 519,398 259,699 779,098 389,549 1,168,648 584,324 292,162 146,081 438,244 219,122 109,561 328,684 164,342 82,171 246,514 123,257 369,772 184,886 92,443 277,330 138,665 415,996 207,998 103,999 311,998 155,999 467,998 233,999 701,998 350,999 1,052,998 526,499 1,579,498 789,749 2,369,248 1,184,624 592,312 296,156 148,078 74,039 222,118 111,059

More profiles

← Previous Integer #2,918,287 Browse Full Index Next Integer #2,918,289 →