λ
Sequence Observatory

5,031,581

149 × 33769
Deficient Odd Composite

Starting at 5,031,581, the Collatz iteration reaches 1 after 157 steps. The first transition is 15094744; the starting value is odd with 4 positive divisors.

Prime Factor Structure

Factorization String 149 × 33769
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 4
Divisor Sum (σ) 5,065,500
Proper Divisor Sum 33,919
Digit Sum / Digital Root 23 (Root: 5)
Adjacent Primes #5031569 ← → #5031583

Radix Representation

Decimal 5031581
Binary 10011001100011010011101 (23 bits)
Octal 0o23143235
Hexadecimal 0x4CC69D

Divisor Catalog (4)

1 149 33,769 5,031,581

Collatz Trajectory (157 steps to reach 1)

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

5,031,581 15,094,744 7,547,372 3,773,686 1,886,843 5,660,530 2,830,265 8,490,796 4,245,398 2,122,699 6,368,098 3,184,049 9,552,148 4,776,074 2,388,037 7,164,112 3,582,056 1,791,028 895,514 447,757 1,343,272 671,636 335,818 167,909 503,728 251,864 125,932 62,966 31,483 94,450 47,225 141,676 70,838 35,419 106,258 53,129 159,388 79,694 39,847 119,542 59,771 179,314 89,657 268,972 134,486 67,243 201,730 100,865 302,596 151,298 75,649 226,948 113,474 56,737 170,212 85,106 42,553 127,660 63,830 31,915

More profiles

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