6,466,551

3 × 7 × 13 × 23687

Starting at 6,466,551, the Collatz iteration reaches 1 after 116 steps. The first transition is 19399654; the starting value is odd with 16 positive divisors.

Prime Factor Structure

Factorization String 3 × 7 × 13 × 23687

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 10,612,224

Proper Divisor Sum 4,145,673

Digit Sum / Digital Root 33 (Root: 6)

Adjacent Primes #6466547 ← → #6466591

Radix Representation

Decimal	6466551
Binary	11000101010101111110111 (23 bits)
Octal	0o30525767
Hexadecimal	0x62ABF7

Divisor Catalog (16)

1 3 7 13 21 39 91 273 23,687 71,061 165,809 307,931 497,427 923,793 2,155,517 6,466,551

Collatz Trajectory (116 steps to reach 1)

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

6,466,551 19,399,654 9,699,827 29,099,482 14,549,741 43,649,224 21,824,612 10,912,306 5,456,153 16,368,460 8,184,230 4,092,115 12,276,346 6,138,173 18,414,520 9,207,260 4,603,630 2,301,815 6,905,446 3,452,723 10,358,170 5,179,085 15,537,256 7,768,628 3,884,314 1,942,157 5,826,472 2,913,236 1,456,618 728,309 2,184,928 1,092,464 546,232 273,116 136,558 68,279 204,838 102,419 307,258 153,629 460,888 230,444 115,222 57,611 172,834 86,417 259,252 129,626 64,813 194,440 97,220 48,610 24,305 72,916 36,458 18,229 54,688 27,344 13,672 6,836

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