λ
Sequence Observatory

8,013,129

3 × 2671043
Deficient Odd Composite

Starting at 8,013,129, the Collatz iteration reaches 1 after 168 steps. The first transition is 24039388; the starting value is odd with 4 positive divisors.

Prime Factor Structure

Factorization String 3 × 2671043
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 4
Divisor Sum (σ) 10,684,176
Proper Divisor Sum 2,671,047
Digit Sum / Digital Root 24 (Root: 6)
Adjacent Primes #8013121 ← → #8013151

Radix Representation

Decimal 8013129
Binary 11110100100010101001001 (23 bits)
Octal 0o36442511
Hexadecimal 0x7A4549

Divisor Catalog (4)

1 3 2,671,043 8,013,129

Collatz Trajectory (168 steps to reach 1)

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

8,013,129 24,039,388 12,019,694 6,009,847 18,029,542 9,014,771 27,044,314 13,522,157 40,566,472 20,283,236 10,141,618 5,070,809 15,212,428 7,606,214 3,803,107 11,409,322 5,704,661 17,113,984 8,556,992 4,278,496 2,139,248 1,069,624 534,812 267,406 133,703 401,110 200,555 601,666 300,833 902,500 451,250 225,625 676,876 338,438 169,219 507,658 253,829 761,488 380,744 190,372 95,186 47,593 142,780 71,390 35,695 107,086 53,543 160,630 80,315 240,946 120,473 361,420 180,710 90,355 271,066 135,533 406,600 203,300 101,650 50,825

More profiles

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