λ
Sequence Observatory

2,864,658

2 × 3 × 223 × 2141
Abundant Even Composite

Starting at 2,864,658, the Collatz iteration reaches 1 after 120 steps. The first transition is 1432329; the starting value is even with 16 positive divisors.

Prime Factor Structure

Factorization String 2 × 3 × 223 × 2141
Distinct Prime Factors 4
Square Status No
Abundance Measure Abundant

Analytical Properties

Total Divisors 16
Divisor Sum (σ) 5,757,696
Proper Divisor Sum 2,893,038
Digit Sum / Digital Root 39 (Root: 3)
Adjacent Primes #2864657 ← → #2864671

Radix Representation

Decimal 2864658
Binary 1010111011011000010010 (22 bits)
Octal 0o12733022
Hexadecimal 0x2BB612

Divisor Catalog (16)

1 2 3 6 223 446 669 1,338 2,141 4,282 6,423 12,846 477,443 954,886 1,432,329 2,864,658

Collatz Trajectory (120 steps to reach 1)

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

2,864,658 1,432,329 4,296,988 2,148,494 1,074,247 3,222,742 1,611,371 4,834,114 2,417,057 7,251,172 3,625,586 1,812,793 5,438,380 2,719,190 1,359,595 4,078,786 2,039,393 6,118,180 3,059,090 1,529,545 4,588,636 2,294,318 1,147,159 3,441,478 1,720,739 5,162,218 2,581,109 7,743,328 3,871,664 1,935,832 967,916 483,958 241,979 725,938 362,969 1,088,908 544,454 272,227 816,682 408,341 1,225,024 612,512 306,256 153,128 76,564 38,282 19,141 57,424 28,712 14,356 7,178 3,589 10,768 5,384 2,692 1,346 673 2,020 1,010 505

More profiles

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