λ
Sequence Observatory

6,389,918

2 × 293 × 131
Deficient Even Composite

Starting at 6,389,918, the Collatz iteration reaches 1 after 95 steps. The first transition is 3194959; the starting value is even with 16 positive divisors.

Prime Factor Structure

Factorization String 2 × 29^3 × 131
Distinct Prime Factors 3
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 16
Divisor Sum (σ) 10,002,960
Proper Divisor Sum 3,613,042
Digit Sum / Digital Root 44 (Root: 8)
Adjacent Primes #6389917 ← → #6389941

Radix Representation

Decimal 6389918
Binary 11000011000000010011110 (23 bits)
Octal 0o30300236
Hexadecimal 0x61809E

Divisor Catalog (16)

1 2 29 58 131 262 841 1,682 3,799 7,598 24,389 48,778 110,171 220,342 3,194,959 6,389,918

Collatz Trajectory (95 steps to reach 1)

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

6,389,918 3,194,959 9,584,878 4,792,439 14,377,318 7,188,659 21,565,978 10,782,989 32,348,968 16,174,484 8,087,242 4,043,621 12,130,864 6,065,432 3,032,716 1,516,358 758,179 2,274,538 1,137,269 3,411,808 1,705,904 852,952 426,476 213,238 106,619 319,858 159,929 479,788 239,894 119,947 359,842 179,921 539,764 269,882 134,941 404,824 202,412 101,206 50,603 151,810 75,905 227,716 113,858 56,929 170,788 85,394 42,697 128,092 64,046 32,023 96,070 48,035 144,106 72,053 216,160 108,080 54,040 27,020 13,510 6,755

More profiles

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