λ
Sequence Observatory

5,055,581

5055581
Deficient Odd Prime

Starting at 5,055,581, the Collatz iteration reaches 1 after 69 steps. The first transition is 15166744; the starting value is odd with 2 positive divisors.

Prime Factor Structure

Factorization String 5055581
Distinct Prime Factors 1
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 2
Divisor Sum (σ) 5,055,582
Proper Divisor Sum 1
Digit Sum / Digital Root 29 (Root: 2)
Adjacent Primes #5055571 ← → #5055593

Radix Representation

Decimal 5055581
Binary 10011010010010001011101 (23 bits)
Octal 0o23222135
Hexadecimal 0x4D245D

Divisor Catalog (2)

Collatz Trajectory (69 steps to reach 1)

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

5,055,581 15,166,744 7,583,372 3,791,686 1,895,843 5,687,530 2,843,765 8,531,296 4,265,648 2,132,824 1,066,412 533,206 266,603 799,810 399,905 1,199,716 599,858 299,929 899,788 449,894 224,947 674,842 337,421 1,012,264 506,132 253,066 126,533 379,600 189,800 94,900 47,450 23,725 71,176 35,588 17,794 8,897 26,692 13,346 6,673 20,020 10,010 5,005 15,016 7,508 3,754 1,877 5,632 2,816 1,408 704 352 176 88 44 22 11 34 17 52 26

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