618,493

23 × 26891

Starting at 618,493, the Collatz iteration reaches 1 after 185 steps. The first transition is 1855480; the starting value is odd with 4 positive divisors.

Prime Factor Structure

Factorization String 23 × 26891

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 645,408

Proper Divisor Sum 26,915

Digit Sum / Digital Root 31 (Root: 4)

Adjacent Primes #618463 ← → #618509

Radix Representation

Decimal	618493
Binary	10010110111111111101 (20 bits)
Octal	0o2267775
Hexadecimal	0x96FFD

Divisor Catalog (4)

1 23 26,891 618,493

Collatz Trajectory (185 steps to reach 1)

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

618,493 1,855,480 927,740 463,870 231,935 695,806 347,903 1,043,710 521,855 1,565,566 782,783 2,348,350 1,174,175 3,522,526 1,761,263 5,283,790 2,641,895 7,925,686 3,962,843 11,888,530 5,944,265 17,832,796 8,916,398 4,458,199 13,374,598 6,687,299 20,061,898 10,030,949 30,092,848 15,046,424 7,523,212 3,761,606 1,880,803 5,642,410 2,821,205 8,463,616 4,231,808 2,115,904 1,057,952 528,976 264,488 132,244 66,122 33,061 99,184 49,592 24,796 12,398 6,199 18,598 9,299 27,898 13,949 41,848 20,924 10,462 5,231 15,694 7,847 23,542

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