λ
Sequence Observatory

6,420,308

22 × 211 × 7607
Deficient Even Composite

Starting at 6,420,308, the Collatz iteration reaches 1 after 147 steps. The first transition is 3210154; the starting value is even with 12 positive divisors.

Prime Factor Structure

Factorization String 2^2 × 211 × 7607
Distinct Prime Factors 3
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 12
Divisor Sum (σ) 11,290,272
Proper Divisor Sum 4,869,964
Digit Sum / Digital Root 23 (Root: 5)
Adjacent Primes #6420307 ← → #6420343

Radix Representation

Decimal 6420308
Binary 11000011111011101010100 (23 bits)
Octal 0o30373524
Hexadecimal 0x61F754

Divisor Catalog (12)

1 2 4 211 422 844 7,607 15,214 30,428 1,605,077 3,210,154 6,420,308

Collatz Trajectory (147 steps to reach 1)

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

6,420,308 3,210,154 1,605,077 4,815,232 2,407,616 1,203,808 601,904 300,952 150,476 75,238 37,619 112,858 56,429 169,288 84,644 42,322 21,161 63,484 31,742 15,871 47,614 23,807 71,422 35,711 107,134 53,567 160,702 80,351 241,054 120,527 361,582 180,791 542,374 271,187 813,562 406,781 1,220,344 610,172 305,086 152,543 457,630 228,815 686,446 343,223 1,029,670 514,835 1,544,506 772,253 2,316,760 1,158,380 579,190 289,595 868,786 434,393 1,303,180 651,590 325,795 977,386 488,693 1,466,080

More profiles

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