λ
Sequence Observatory

5,159,897

5159897
Deficient Odd Prime

Starting at 5,159,897, the Collatz iteration reaches 1 after 100 steps. The first transition is 15479692; the starting value is odd with 2 positive divisors.

Prime Factor Structure

Factorization String 5159897
Distinct Prime Factors 1
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 2
Divisor Sum (σ) 5,159,898
Proper Divisor Sum 1
Digit Sum / Digital Root 44 (Root: 8)
Adjacent Primes #5159893 ← → #5159899

Radix Representation

Decimal 5159897
Binary 10011101011101111011001 (23 bits)
Octal 0o23535731
Hexadecimal 0x4EBBD9

Divisor Catalog (2)

Collatz Trajectory (100 steps to reach 1)

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

5,159,897 15,479,692 7,739,846 3,869,923 11,609,770 5,804,885 17,414,656 8,707,328 4,353,664 2,176,832 1,088,416 544,208 272,104 136,052 68,026 34,013 102,040 51,020 25,510 12,755 38,266 19,133 57,400 28,700 14,350 7,175 21,526 10,763 32,290 16,145 48,436 24,218 12,109 36,328 18,164 9,082 4,541 13,624 6,812 3,406 1,703 5,110 2,555 7,666 3,833 11,500 5,750 2,875 8,626 4,313 12,940 6,470 3,235 9,706 4,853 14,560 7,280 3,640 1,820 910

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