λ
Sequence Observatory

5,639,118

2 × 3 × 939853
Abundant Even Composite

Starting at 5,639,118, the Collatz iteration reaches 1 after 214 steps. The first transition is 2819559; the starting value is even with 8 positive divisors.

Prime Factor Structure

Factorization String 2 × 3 × 939853
Distinct Prime Factors 3
Square Status No
Abundance Measure Abundant

Analytical Properties

Total Divisors 8
Divisor Sum (σ) 11,278,248
Proper Divisor Sum 5,639,130
Digit Sum / Digital Root 33 (Root: 6)
Adjacent Primes #5639083 ← → #5639167

Radix Representation

Decimal 5639118
Binary 10101100000101111001110 (23 bits)
Octal 0o25405716
Hexadecimal 0x560BCE

Divisor Catalog (8)

1 2 3 6 939,853 1,879,706 2,819,559 5,639,118

Collatz Trajectory (214 steps to reach 1)

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

5,639,118 2,819,559 8,458,678 4,229,339 12,688,018 6,344,009 19,032,028 9,516,014 4,758,007 14,274,022 7,137,011 21,411,034 10,705,517 32,116,552 16,058,276 8,029,138 4,014,569 12,043,708 6,021,854 3,010,927 9,032,782 4,516,391 13,549,174 6,774,587 20,323,762 10,161,881 30,485,644 15,242,822 7,621,411 22,864,234 11,432,117 34,296,352 17,148,176 8,574,088 4,287,044 2,143,522 1,071,761 3,215,284 1,607,642 803,821 2,411,464 1,205,732 602,866 301,433 904,300 452,150 226,075 678,226 339,113 1,017,340 508,670 254,335 763,006 381,503 1,144,510 572,255 1,716,766 858,383 2,575,150 1,287,575

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