651,305

5 × 130261

651,305 factors as 5 × 130261. Its 4 positive divisors give a proper-divisor sum of 130,267, so this integer is deficient. The Collatz stopping time is 123 steps.

Prime Factor Structure

Factorization String 5 × 130261

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 781,572

Proper Divisor Sum 130,267

Digit Sum / Digital Root 20 (Root: 2)

Adjacent Primes #651293 ← → #651323

Radix Representation

Decimal	651305
Binary	10011111000000101001 (20 bits)
Octal	0o2370051
Hexadecimal	0x9F029

Divisor Catalog (4)

1 5 130,261 651,305

Collatz Trajectory (123 steps to reach 1)

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

651,305 1,953,916 976,958 488,479 1,465,438 732,719 2,198,158 1,099,079 3,297,238 1,648,619 4,945,858 2,472,929 7,418,788 3,709,394 1,854,697 5,564,092 2,782,046 1,391,023 4,173,070 2,086,535 6,259,606 3,129,803 9,389,410 4,694,705 14,084,116 7,042,058 3,521,029 10,563,088 5,281,544 2,640,772 1,320,386 660,193 1,980,580 990,290 495,145 1,485,436 742,718 371,359 1,114,078 557,039 1,671,118 835,559 2,506,678 1,253,339 3,760,018 1,880,009 5,640,028 2,820,014 1,410,007 4,230,022 2,115,011 6,345,034 3,172,517 9,517,552 4,758,776 2,379,388 1,189,694 594,847 1,784,542 892,271

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