λ
Sequence Observatory

6,684,025

52 × 41 × 6521
Deficient Odd Composite

Starting at 6,684,025, the Collatz iteration reaches 1 after 147 steps. The first transition is 20052076; the starting value is odd with 12 positive divisors.

Prime Factor Structure

Factorization String 5^2 × 41 × 6521
Distinct Prime Factors 3
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 12
Divisor Sum (σ) 8,491,644
Proper Divisor Sum 1,807,619
Digit Sum / Digital Root 31 (Root: 4)
Adjacent Primes #6684023 ← → #6684037

Radix Representation

Decimal 6684025
Binary 11001011111110101111001 (23 bits)
Octal 0o31376571
Hexadecimal 0x65FD79

Divisor Catalog (12)

1 5 25 41 205 1,025 6,521 32,605 163,025 267,361 1,336,805 6,684,025

Collatz Trajectory (147 steps to reach 1)

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

6,684,025 20,052,076 10,026,038 5,013,019 15,039,058 7,519,529 22,558,588 11,279,294 5,639,647 16,918,942 8,459,471 25,378,414 12,689,207 38,067,622 19,033,811 57,101,434 28,550,717 85,652,152 42,826,076 21,413,038 10,706,519 32,119,558 16,059,779 48,179,338 24,089,669 72,269,008 36,134,504 18,067,252 9,033,626 4,516,813 13,550,440 6,775,220 3,387,610 1,693,805 5,081,416 2,540,708 1,270,354 635,177 1,905,532 952,766 476,383 1,429,150 714,575 2,143,726 1,071,863 3,215,590 1,607,795 4,823,386 2,411,693 7,235,080 3,617,540 1,808,770 904,385 2,713,156 1,356,578 678,289 2,034,868 1,017,434 508,717 1,526,152

More profiles

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